61. Volume 3, Number 4: American breeders' magazine Collection: Core Historical Literature of Agriculture Publisher: American Breeders' Association Publication Place: Washington, D.C. Date: 1912 Format: Issue
62. Volume 15, Number 11: Plant world Collection: Core Historical Literature of Agriculture Publisher: Plant World Association Publication Place: Baltimore, Md. Date: 1912 Format: Issue
63. Volume 15, Number 12: Plant world Collection: Core Historical Literature of Agriculture Publisher: Plant World Association Publication Place: Baltimore, Md. Date: 1912 Format: Issue
64. Volume 15, Index : Plant world Collection: Core Historical Literature of Agriculture Publisher: Plant World Association Publication Place: Baltimore, Md. Date: 1912 Format: Issue
65. Volume 15, Number 1: Plant world Collection: Core Historical Literature of Agriculture Publisher: Plant World Association Publication Place: Baltimore, Md. Date: 1912 Format: Issue
66. Volume 15, Number 2: Plant world Collection: Core Historical Literature of Agriculture Publisher: Plant World Association Publication Place: Baltimore, Md. Date: 1912 Format: Issue
67. Volume 15, Number 3: Plant world Collection: Core Historical Literature of Agriculture Publisher: Plant World Association Publication Place: Baltimore, Md. Date: 1912 Format: Issue
68. Volume 15, Number 4: Plant world Collection: Core Historical Literature of Agriculture Publisher: Plant World Association Publication Place: Baltimore, Md. Date: 1912 Format: Issue
69. Volume 15, Number 5: Plant world Collection: Core Historical Literature of Agriculture Publisher: Plant World Association Publication Place: Baltimore, Md. Date: 1912 Format: Issue
70. Volume 15, Number 6: Plant world Collection: Core Historical Literature of Agriculture Publisher: Plant World Association Publication Place: Baltimore, Md. Date: 1912 Format: Issue