APA (7th ed.) Citation

Pollard, E., Hall, M. L., & Bibby, T. J. (1986). Monitoring the abundance of butterflies: 1976 - 1985. Nature Conservancy Council.

Chicago Style (17th ed.) Citation

Pollard, Ernest, M. L. Hall, and T. J. Bibby. Monitoring the Abundance of Butterflies: 1976 - 1985. Peterborough: Nature Conservancy Council, 1986.

MLA (9th ed.) Citation

Pollard, Ernest, et al. Monitoring the Abundance of Butterflies: 1976 - 1985. Nature Conservancy Council, 1986.