(1977). Elements of zoology (4th ed.). G. M. S. Pub.
Chicago Style (17th ed.) CitationElements of Zoology. 4th ed. Quezon City: G. M. S. Pub, 1977.
MLA (9th ed.) CitationElements of Zoology. 4th ed. G. M. S. Pub, 1977.
Warning: These citations may not always be 100% accurate.