APA (7th ed.) Citation

Bielefeld, R. R., Jr, A. E., Feddersen, J. C., Eadie, J. M., Tringali, M. D., & Jr, R. J. B. Is it a mottled duck? The key is in the feathers. Wiley.

Chicago Style (17th ed.) Citation

Bielefeld, Ronald R., Andrew Engilis Jr, Jamie C. Feddersen, John M. Eadie, Michael D. Tringali, and R. Joseph Benedict Jr. Is It a Mottled Duck? The Key Is in the Feathers. Wiley.

MLA (9th ed.) Citation

Bielefeld, Ronald R., et al. Is It a Mottled Duck? The Key Is in the Feathers. Wiley.