Ruppert, E. E., Fox, R. S., & Barnes, R. D. (2004). Invertebrate Zoology: A Functional Evolutionary Approach (7th ed.). Thomson Business Information India Private Limited.
Lua i Stíl Chicago (17ú heag.)Ruppert, Edward E., Richard S. Fox, agus Robert D. Barnes. Invertebrate Zoology: A Functional Evolutionary Approach. 7th ed. New Delhi: Thomson Business Information India Private Limited, 2004.
Lua MLA (9ú heag.)Ruppert, Edward E., et al. Invertebrate Zoology: A Functional Evolutionary Approach. 7th ed. Thomson Business Information India Private Limited, 2004.
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