Παραπομπή APA

Shepard, F. P., & Dill, R. F. Submarine canyons and other sea valleys.

Παραπομπή Chicago Style

Shepard, Francis P., και Robert F. Dill. Submarine Canyons and Other Sea Valleys.

Παραπομπή MLA

Shepard, Francis P., και Robert F. Dill. Submarine Canyons and Other Sea Valleys.