Não informado. (1970). Policy Sciences. Kluwer Academic Publishers.
Style de citation Chicago (17e éd.)Não informado. Policy Sciences. Dordrecht, Holanda: Kluwer Academic Publishers, 1970.
Style de citation MLA (8e éd.)Não informado. Policy Sciences. Kluwer Academic Publishers, 1970.
Attention : ces citations peuvent ne pas être correctes à 100%.