Não informado. (1967). Phosphorus in agriculture. International Superphosphate and Compound Manufacturers Association.
Style de citation Chicago (17e éd.)Não informado. Phosphorus in Agriculture. London: International Superphosphate and Compound Manufacturers Association, 1967.
Style de citation MLA (8e éd.)Não informado. Phosphorus in Agriculture. International Superphosphate and Compound Manufacturers Association, 1967.
Attention : ces citations peuvent ne pas être correctes à 100%.