Cowen, R. (1960). Frontiers of the sea: The story of oceanographic exploration. Doubleday.
Citación estilo ChicagoCowen, Robert. Frontiers of the Sea: The Story of Oceanographic Exploration. Nueva York: Doubleday, 1960.
Cita MLACowen, Robert. Frontiers of the Sea: The Story of Oceanographic Exploration. Doubleday, 1960.
Warning: These citations may not always be 100% accurate.