Não informado. (1969). Organic Preparations and Procedures International. Organic Preparations and Procedures.
Style de citation Chicago (17e éd.)Não informado. Organic Preparations and Procedures International. Newton, Mass: Organic Preparations and Procedures, 1969.
Style de citation MLA (8e éd.)Não informado. Organic Preparations and Procedures International. Organic Preparations and Procedures, 1969.
Attention : ces citations peuvent ne pas être correctes à 100%.