Cita APA (7a ed.)

Porwit, K. (1967). Central planning: Evaluation of variants (1st English ed.). Pergamon [etc.].

Cita Chicago Style (17a ed.)

Porwit, Krzysztof. Central Planning: Evaluation of Variants. 1st English ed. Oxford [etc.]: Pergamon [etc.], 1967.

Cita MLA (9a ed.)

Porwit, Krzysztof. Central Planning: Evaluation of Variants. 1st English ed. Pergamon [etc.], 1967.