Bear, F. E. (1951). Hunger signs in crops - A symposium (Fourth Printing.). Washington, D. C.: The American Society of Agronomy - The National Fertilizer Association.
Chicago Style CitationBear, Firman E. Hunger Signs in Crops - A Symposium. Fourth Printing. Washington, D. C.: The American Society of Agronomy - The National Fertilizer Association, 1951.
MLA CitationBear, Firman E. Hunger Signs in Crops - A Symposium. Fourth Printing. Washington, D. C.: The American Society of Agronomy - The National Fertilizer Association, 1951.
Warning: These citations may not always be 100% accurate.