Cita APA (7a ed.)
Russell, D. H. (1952). Doorways to discovey. (1a.ed.). Ginn and Company.
Cita Chicago Style (17a ed.)
Russell, David H. Doorways to Discovey. 1a.ed. Estados Unidos: Ginn and Company, 1952.
Cita MLA (9a ed.)
Russell, David H. Doorways to Discovey. 1a.ed. Ginn and Company, 1952.
Precaución: Estas citas no son 100% exactas.