Smith, R. E. Spraying walnut trees for blight and aphis control. Berkeley, Calif. : University of California, College of Agriculture, Agricultural Experiment Station.
Chicago Style (17th ed.) CitationSmith, Ralph E. Spraying Walnut Trees for Blight and Aphis Control. Berkeley, Calif. : University of California, College of Agriculture, Agricultural Experiment Station.
MLA (8th ed.) CitationSmith, Ralph E. Spraying Walnut Trees for Blight and Aphis Control. Berkeley, Calif. : University of California, College of Agriculture, Agricultural Experiment Station.
IICA/CATIE CitationSmith, R. E. Spraying walnut trees for blight and aphis control. Berkeley, Calif. : University of California, College of Agriculture, Agricultural Experiment Station.