Hickman, C. P. J., Roberts, L. S., & Keen, S. L. (2009). Integrated principles of zoology (Fourtennth edition, International edition.). McGraw-Hill/Higher Education.
Chicago-viite (17. p.)Hickman, Cleveland P. Jr, Larry S. Roberts, ja Susan L. Keen. Integrated Principles of Zoology. Fourtennth edition, International edition. Boston, MA: McGraw-Hill/Higher Education, 2009.
MLA-viite (9. p.)Hickman, Cleveland P. Jr, et al. Integrated Principles of Zoology. Fourtennth edition, International edition. McGraw-Hill/Higher Education, 2009.
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