Cita APA (7a ed.)
(1989). Economic Papers 20 (1. ed.). Central Schools of Planning and Statistics.
Cita Chicago Style (17a ed.)
Economic Papers 20. 1. ed. Warsaw: Central Schools of Planning and Statistics, 1989.
Cita MLA (9a ed.)
Economic Papers 20. 1. ed. Central Schools of Planning and Statistics, 1989.
Precaución: Estas citas no son 100% exactas.