"Easy Organic Vegetable Garden Tips." (Garden Guides) <http://www.gardenguides.com/98175-easy-organic-vegetable-garden-tips.html>
"List of Companion Plants." (Companion Planting) <http://www.companionplanting.net/ListofCompanionPlants.html>
"Gardening Guidelines." (Texas Agricultural Extension Service) <aggie-horticulture.tamu.edu/archives/parsons/earthkind/ekgarden.pdf>
"Vegetable Companion Planting Chart." (Tinker's Garden) <http://www.tinkersgardens.com/vegetables/companionplanting.asp>
photo by: Thebittenword.com (CC/flickr) <http://www.flickr.com/photos/galant/2570441982/sizes/m/in/photostream/>
photo by: Joi (CC/flickr) <http://www.flickr.com/photos/joi/506693397/sizes/m/in/photostream/>