APA (7th ed.) Citation

Mahlstede, J. P. (1975). The symbiosis of plants and people. U.S. Dept. of Agriculture, Agricultural Research Service.

Chicago Style (17th ed.) Citation

Mahlstede, John P. The Symbiosis of Plants and People. [Washington]: U.S. Dept. of Agriculture, Agricultural Research Service, 1975.

MLA (9th ed.) Citation

Mahlstede, John P. The Symbiosis of Plants and People. U.S. Dept. of Agriculture, Agricultural Research Service, 1975.