APA (7th ed.) Citation

Massey, C. L., Lucht, D. D., & Schmid, J. M. (1977). Roundheaded pine beetle. Dept. of Agriculture, Forest Service.

Chicago Style (17th ed.) Citation

Massey, C. L., D D. Lucht, and J. M. Schmid. Roundheaded Pine Beetle. [Washington]: Dept. of Agriculture, Forest Service, 1977.

MLA (9th ed.) Citation

Massey, C. L., et al. Roundheaded Pine Beetle. Dept. of Agriculture, Forest Service, 1977.