Cita APA

Hardy, A. C. S., & Hardy, A. C. S. (1970). The open sea, its natural history. Boston: Houghton Mifflin.

Citación estilo Chicago

Hardy, Alister Clavering Sir, y Alister Clavering Sir Hardy. The Open Sea, Its Natural History. Boston: Houghton Mifflin, 1970.

Cita MLA

Hardy, Alister Clavering Sir, y Alister Clavering Sir Hardy. The Open Sea, Its Natural History. Boston: Houghton Mifflin, 1970.