Day, J. H. (1969). A Guide to marine life on South African shores. A. A. Balkema.
Chicago Style (17th ed.) CitationDay, John Hemsworth. A Guide to Marine Life on South African Shores. Cape Town: A. A. Balkema, 1969.
MLA (9th ed.) CitationDay, John Hemsworth. A Guide to Marine Life on South African Shores. A. A. Balkema, 1969.
Warning: These citations may not always be 100% accurate.