APA-referens (7:e uppl.)
Michener, D., & Sinton, N. (2001). Taylor's guide to ground covers: More than 400 flowering and foliage ground covers for every garden situation (Completely rev. and updated.). Houghton Mifflin.
Chicago-referens (17:e uppl.)
Michener, David, och Nan Sinton. Taylor's Guide to Ground Covers: More than 400 Flowering and Foliage Ground Covers for Every Garden Situation. Completely rev. and updated. Boston: Houghton Mifflin, 2001.
MLA-referens (9:e uppl.)
Michener, David, och Nan Sinton. Taylor's Guide to Ground Covers: More than 400 Flowering and Foliage Ground Covers for Every Garden Situation. Completely rev. and updated. Houghton Mifflin, 2001.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.