APA (7th ed.) Citation

Ruppert, E. E., & Barnes, R. D. (1994). Invertebrate zoology (6th ed.). Saunders College Pub.

Chicago Style (17th ed.) Citation

Ruppert, Edward E., and Robert D. Barnes. Invertebrate Zoology. 6th ed. Fort Worth: Saunders College Pub, 1994.

MLA (9th ed.) Citation

Ruppert, Edward E., and Robert D. Barnes. Invertebrate Zoology. 6th ed. Saunders College Pub, 1994.