1
Published: 1936
Superior document: Circular / California Agricultural Extension Service 95
2
Published: 1924
Superior document: Bulletin / Agricultural Experiment Station / University of California, Division of Agricultural Sciences 381
3
Published: 1928
Superior document: Bulletin / Agricultural Experiment Station / University of California, Division of Agricultural Sciences 446
4
Published: 1926
Superior document: Bulletin / Agricultural Experiment Station / University of California, Division of Agricultural Sciences 410