41. Number 922, Edition Revised - Home Lawns: Cornell extension bulletin Collection: Core Historical Literature of Agriculture Publisher: New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1968 Format: Issue
42. Number 1022: Bulletin Collection: Core Historical Literature of Agriculture Publisher: Cornell University Agricultural Experiment Station, New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1968 Format: Issue
43. Volume 1968: Cornell recommendations for commercial floriculture crops Collection: Core Historical Literature of Agriculture Publisher: New York State College of Agriculture and Life Sciences, Cornell University Publication Place: Ithaca, N.Y. Date: 1968 Format: Issue
44. Volume 1968: Cornell recommends for field crops Collection: Core Historical Literature of Agriculture Publisher: New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1968 Format: Issue
45. Volume 1968, Edition Revised: Cornell recommendations for commercial production and maintenance of trees and shrubs Collection: Core Historical Literature of Agriculture Publisher: New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1968 Format: Issue
46. Number 405 - Taxonomic Revision of the Nearctic Genus Acanthomyops (Hymenoptera: Memoir Collection: Core Historical Literature of Agriculture Publisher: Cornell University, Agricultural Experiment Station Publication Place: Ithaca, N.Y. Date: 1968 Format: Issue
47. Number 406 - Pollination and Serological Procedures for Isolating Incompatibility Genotypes in the Crucifers: Memoir Collection: Core Historical Literature of Agriculture Publisher: Cornell University, Agricultural Experiment Station Publication Place: Ithaca, N.Y. Date: 1968 Format: Issue
48. Number 407 - California Aphids in the Cornell University Collection (Homoptera: Memoir Collection: Core Historical Literature of Agriculture Publisher: Cornell University, Agricultural Experiment Station Publication Place: Ithaca, N.Y. Date: 1968 Format: Issue
49. Number 1152, Edition Revised - Container Culture of Ornamental Plants for the Home Grounds: Cornell extension bulletin Collection: Core Historical Literature of Agriculture Publisher: New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1968 Format: Issue
50. Number 1099, Edition Reprint - Landscape Design for Residential Property: Cornell extension bulletin Collection: Core Historical Literature of Agriculture Publisher: New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1968 Format: Issue