Cita APA

R.Kolevzon Edward, & A.Heine John. (1956). Our World and its peoples. American: Allyn and Bacon.

Citación estilo Chicago

R.Kolevzon Edward, y A.Heine John. Our World and Its Peoples. American: Allyn and Bacon, 1956.

Cita MLA

R.Kolevzon Edward, y A.Heine John. Our World and Its Peoples. American: Allyn and Bacon, 1956.