Sprague, H. B., & Plucknett, D. L. (1989). Detecting mineral nutrient deficiencies in tropical and temperate crops. Westview Press.
Chicago Style (17th ed.) CitationSprague, Howard Bennett, and Donald L. Plucknett. Detecting Mineral Nutrient Deficiencies in Tropical and Temperate Crops. Boulder: Westview Press, 1989.
MLA (9th ed.) CitationSprague, Howard Bennett, and Donald L. Plucknett. Detecting Mineral Nutrient Deficiencies in Tropical and Temperate Crops. Westview Press, 1989.
Warning: These citations may not always be 100% accurate.