Morgan, M. F. (1935). The universal soil testing system. Connecticut Agricultural Experiment Station.
Chicago Style (17th ed.) CitationMorgan, M. F. The Universal Soil Testing System. New Haven: Connecticut Agricultural Experiment Station, 1935.
MLA (9th ed.) CitationMorgan, M. F. The Universal Soil Testing System. Connecticut Agricultural Experiment Station, 1935.
Warning: These citations may not always be 100% accurate.