Παραπομπή APA

Cohen, J. M. E., & Columbus, C. A. (1969). The four voyages of Christopher Columbus.

Παραπομπή Chicago Style

Cohen, J M; Editor, και Christopher; Author Columbus. The Four Voyages of Christopher Columbus. New Delhi, Penguin Books India(P) Ltd Ne, 1969.

Παραπομπή MLA

Cohen, J M; Editor, και Christopher; Author Columbus. The Four Voyages of Christopher Columbus. 1969.