Alternative Farming Systems Information Center (U.S.). Educational and training opportunities in sustainable agriculture. National Agricultural Library.
Chicago Style (17th ed.) CitationAlternative Farming Systems Information Center (U.S.). Educational and Training Opportunities in Sustainable Agriculture. Beltsville, MD: National Agricultural Library.
MLA (9th ed.) CitationAlternative Farming Systems Information Center (U.S.). Educational and Training Opportunities in Sustainable Agriculture. National Agricultural Library.
Warning: These citations may not always be 100% accurate.