APA (7th ed.) Citation

Parkins, A. E., Whitaker, J. R., Atwood, W. W., & Baker, O. E. (1936). Our natural resources and their conservation. J. Wiley & sons, inc..

Chicago Style (17th ed.) Citation

Parkins, A. E., J. Russell Whitaker, Wallace Walter Atwood, and O. E. Baker. Our Natural Resources and Their Conservation. J. Wiley & sons, inc., 1936.

MLA (8th ed.) Citation

Parkins, A. E., et al. Our Natural Resources and Their Conservation. J. Wiley & sons, inc., 1936.