1
प्रकाशित: 1948
Superior document: Circular / California Agricultural Extension Service 142
2
प्रकाशित: 1958
Superior document: Circular / California Agricultural Experiment Station ; California Agricultural Extension Service / University of California, Division of Agricultural Sciences 434
3
प्रकाशित: 1947
Superior document: Circular / California Agricultural Extension Service 138
4
प्रकाशित: 1953
Superior document: Circular / California Agricultural Experiment Station ; California Agricultural Extension Service / University of California, Division of Agricultural Sciences 434
5
6
प्रकाशित: 1965
Superior document: Circular / California Agricultural Experiment Station ; California Agricultural Extension Service / University of California, Division of Agricultural Sciences 535