APA (7th ed.) Zitazioa
Goldbloom, S. (1992). The unofficial gardener's handbook. Plume.
Chicago Style (17th ed.) Zitazioa
Goldbloom, Shelley. The Unofficial Gardener's Handbook. New York, N.Y., U.S.A.: Plume, 1992.
MLA (9th ed.) Zitazioa
Goldbloom, Shelley. The Unofficial Gardener's Handbook. Plume, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.