APA (7th ed.) Citation

Ryel, L. A. (1980). The 1980 Kirtland's warbler census. Michigan Department of Natural Resources.

Chicago Style (17th ed.) Citation

Ryel, L. A. The 1980 Kirtland's Warbler Census. [Lansing, Mich.]: Michigan Department of Natural Resources, 1980.

MLA (9th ed.) Citation

Ryel, L. A. The 1980 Kirtland's Warbler Census. Michigan Department of Natural Resources, 1980.