APA (7th ed.) Citation

National Gardening Association (U.S.), National Gardening Association (U.S.), & Harris Interactive (Firm). (2011). Environmental lawn and garden survey (2011 edition.). National Gardening Association.

Chicago Style (17th ed.) Citation

National Gardening Association (U.S.), National Gardening Association (U.S.), and Harris Interactive (Firm). Environmental Lawn and Garden Survey. 2011 edition. South Burlington, Vt.: National Gardening Association, 2011.

MLA (9th ed.) Citation

National Gardening Association (U.S.), et al. Environmental Lawn and Garden Survey. 2011 edition. National Gardening Association, 2011.