APA (7th ed.) Citation

Lorenz, D. G., Sharp, W. C., & Ruffner, J. D. (1991). Conservation plants for the Northeast (Revised Feb. 1991.). U.S. Department of Agriculture, Soil Conservation Service.

Chicago Style (17th ed.) Citation

Lorenz, David G., W. Curtis Sharp, and Joseph D. Ruffner. Conservation Plants for the Northeast. Revised Feb. 1991. [Washington, D.C.?]: U.S. Department of Agriculture, Soil Conservation Service, 1991.

MLA (9th ed.) Citation

Lorenz, David G., et al. Conservation Plants for the Northeast. Revised Feb. 1991. U.S. Department of Agriculture, Soil Conservation Service, 1991.