Engelken, R., Engelken, R., & Slattery, P. (1981). The art of natural farming & gardening. Barrington Hall Press.
Chicago Style (17th ed.) CitationEngelken, Ralph, Rita Engelken, and Pat Slattery. The Art of Natural Farming & Gardening. Greeley, Iowa: Barrington Hall Press, 1981.
MLA引文Engelken, Ralph, et al. The Art of Natural Farming & Gardening. Barrington Hall Press, 1981.
警告:這些引文格式不一定是100%准確.