APA (7th ed.) Citation

Bull, E. L., Peterson, S. R., & Thomas, J. W. (1986). Resource partitioning among woodpeckers in northeastern Oregon. [publisher not identified].

Chicago Style (17th ed.) Citation

Bull, Evelyn L., Steven R. Peterson, and Jack Ward Thomas. Resource Partitioning Among Woodpeckers in Northeastern Oregon. Portland, Or. : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station: [publisher not identified], 1986.

MLA (9th ed.) Citation

Bull, Evelyn L., et al. Resource Partitioning Among Woodpeckers in Northeastern Oregon. [publisher not identified], 1986.