APA Citation

Vroomen, H. (1992). Fertilizer use and price statistics, 1960 -1991 Harry Vroomen. Washington:Economic Research Service USDA.

Chicago Style Citation

Vroomen, Harry. Fertilizer Use and Price Statistics, 1960 -1991 Harry Vroomen. Washington:Economic Research Service USDA, 1992.

MLA Citation

Vroomen, Harry. Fertilizer Use and Price Statistics, 1960 -1991 Harry Vroomen. Washington:Economic Research Service USDA, 1992.

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