1
Published: 1933
Superior document: Bulletin / Agricultural Experiment Station / University of California, Division of Agricultural Sciences 559
2
3
Published: 1931
Superior document: Bulletin / Agricultural Experiment Station / University of California, Division of Agricultural Sciences 516
4
Published: 1940
Superior document: Bulletin / Agricultural Experiment Station / University of California, Division of Agricultural Sciences 642
5
Published: 1958
Superior document: Bulletin / Agricultural Experiment Station / University of California, Division of Agricultural Sciences 760
6
Published: 1937
Superior document: Bulletin / Agricultural Experiment Station / University of California, Division of Agricultural Sciences 612
7
The principles of cooperation and their relation to success or failure / H. E. Erdman ; J. M. Tinley
Published: 1957
Superior document: Bulletin / Agricultural Experiment Station / University of California, Division of Agricultural Sciences 758
8
Published: 1957
Superior document: Bulletin / Agricultural Experiment Station / University of California, Division of Agricultural Sciences 759