APA (7th ed.) Citation

Keiser, G. M. (1974). A guide to collecting and preserving plants. U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station.

Chicago Style (17th ed.) Citation

Keiser, George M. A Guide to Collecting and Preserving Plants. Upper Darby, Pa.: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1974.

MLA (9th ed.) Citation

Keiser, George M. A Guide to Collecting and Preserving Plants. U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1974.