Plucknett,Donald L, & Sprague,Howard B. (1990). Detecting Mineral Nutrient Deficiencies in Tropicial and Temprate crops. International Book Distributors.
Chicago Edition CitationPlucknett,Donald L, and Sprague,Howard B. Detecting Mineral Nutrient Deficiencies in Tropicial and Temprate Crops. Dehra Dun: International Book Distributors, 1990.
MLA Edition CitationPlucknett,Donald L, and Sprague,Howard B. Detecting Mineral Nutrient Deficiencies in Tropicial and Temprate Crops. International Book Distributors, 1990.
Warning: These citations may not always be 100% accurate.