APA (7th ed.) Citation

Bayer, F. M., & Owre, H. B. (1968). The free-living lower invertebrates. Macmillan.

Chicago Style (17th ed.) Citation

Bayer, Frederick M., and Harding B. Owre. The Free-living Lower Invertebrates. New York: Macmillan, 1968.

MLA (9th ed.) Citation

Bayer, Frederick M., and Harding B. Owre. The Free-living Lower Invertebrates. Macmillan, 1968.