Britannica Corporation. (1990). Geology [motion pictures]: Ocean dynamics : the work of the sea, the beach : a river of sand, waves on water. Encyclopedia Britannica Educational Corporation.
Chicago-referens (17:e uppl.)Britannica Corporation. Geology [motion Pictures]: Ocean Dynamics : The Work of the Sea, the Beach : A River of Sand, Waves on Water. Chicago: Encyclopedia Britannica Educational Corporation, 1990.
MLA-referens (9:e uppl.)Britannica Corporation. Geology [motion Pictures]: Ocean Dynamics : The Work of the Sea, the Beach : A River of Sand, Waves on Water. Encyclopedia Britannica Educational Corporation, 1990.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.