Style de citation APA (7e éd.)
(1989). Economic Papers 20 (1. ed.). Central Schools of Planning and Statistics.
Style de citation Chicago (17e éd.)
Economic Papers 20. 1. ed. Warsaw: Central Schools of Planning and Statistics, 1989.
Style de citation MLA (9e éd.)
Economic Papers 20. 1. ed. Central Schools of Planning and Statistics, 1989.
Attention : ces citations peuvent ne pas être correctes à 100%.