Não informado. (1971). Ag chem and commercial fertilizer. Industry Publications.
Style de citation Chicago (17e éd.)Não informado. Ag Chem and Commercial Fertilizer. Cedar Grove, NJ: Industry Publications, 1971.
Style de citation MLA (8e éd.)Não informado. Ag Chem and Commercial Fertilizer. Industry Publications, 1971.
Attention : ces citations peuvent ne pas être correctes à 100%.