31. Volume 20, Number 3 - Blackspot Problem on Norchip and Raritan: Cornell veg-news Collection: Core Historical Literature of Agriculture Publisher: Vegetable Crops Dept., New York State College of Agriculture and Life Sciences, Cornell University Publication Place: Ithaca, N.Y. Date: 1971 Format: Issue
32. Volume 20, Number 4 - News Notes: Cornell veg-news Collection: Core Historical Literature of Agriculture Publisher: Vegetable Crops Dept., New York State College of Agriculture and Life Sciences, Cornell University Publication Place: Ithaca, N.Y. Date: 1971 Format: Issue
33. Volume 20, Number 5: Cornell veg-news Collection: Core Historical Literature of Agriculture Publisher: Vegetable Crops Dept., New York State College of Agriculture and Life Sciences, Cornell University Publication Place: Ithaca, N.Y. Date: 1971 Format: Issue
34. Volume 20, Number 6 - New Potato Grades: Cornell veg-news Collection: Core Historical Literature of Agriculture Publisher: Vegetable Crops Dept., New York State College of Agriculture and Life Sciences, Cornell University Publication Place: Ithaca, N.Y. Date: 1971 Format: Issue
35. Volume 53, Number 1: American journal of agricultural economics Collection: Core Historical Literature of Agriculture Publisher: American Agricultural Economics Association Publication Place: Menasha, Wis. Date: 1971 Format: Issue
36. Volume 53, Number 2: American journal of agricultural economics Collection: Core Historical Literature of Agriculture Publisher: American Agricultural Economics Association Publication Place: Menasha, Wis. Date: 1971 Format: Issue
37. Volume 53, Number 3: American journal of agricultural economics Collection: Core Historical Literature of Agriculture Publisher: American Agricultural Economics Association Publication Place: Menasha, Wis. Date: 1971 Format: Issue
38. Volume 53, Number 4: American journal of agricultural economics Collection: Core Historical Literature of Agriculture Publisher: American Agricultural Economics Association Publication Place: Menasha, Wis. Date: 1971 Format: Issue
39. Volume 53, Number 5: American journal of agricultural economics Collection: Core Historical Literature of Agriculture Publisher: American Agricultural Economics Association Publication Place: Menasha, Wis. Date: 1971 Format: Issue
40. Volume 36, Number 1: Rural sociology Collection: Core Historical Literature of Agriculture Publisher: Rural Sociological Society Publication Place: Columbia, Mo. Date: 1971 Format: Issue