Shepard, Francis P. 1897-1985. Submarine canyons and other sea valleys / by Francis P. Shepard and Robert F. Dill. - Chicago : Rand McNally 1966 - xiii, 381 p. : ill. ; 24 cm. - Rand mcnally geology . - Rand mcnally geology . Includes Bibliography and index Subjects--Topical Terms: Submarine valleys. Dewey Class. No.: 551.46 / SHS 1966