APA (7th ed.) Citation

Morgan, M. F. (1935). The universal soil testing system. Connecticut Agricultural Experiment Station.

Chicago Style (17th ed.) Citation

Morgan, M. F. The Universal Soil Testing System. New Haven: Connecticut Agricultural Experiment Station, 1935.

MLA (9th ed.) Citation

Morgan, M. F. The Universal Soil Testing System. Connecticut Agricultural Experiment Station, 1935.

Warning: These citations may not always be 100% accurate.