1
Published: 1931
Superior document: Bulletin / Agricultural Experiment Station / University of California, Division of Agricultural Sciences 521
2
Published: 1931
Superior document: Bulletin / Agricultural Experiment Station / University of California, Division of Agricultural Sciences 512
3
Published: 1930
Superior document: Bulletin / Agricultural Experiment Station / University of California, Division of Agricultural Sciences 502
4
Published: 1927
Superior document: Bulletin / Agricultural Experiment Station / University of California, Division of Agricultural Sciences 444