APA aipamena

(2000). Preventing stem girdling roots. California: Minnesota Society of Arboriculture.

Chicago Style aipamena

Preventing Stem Girdling Roots. California: Minnesota Society of Arboriculture, 2000.

MLA aipamena

Preventing Stem Girdling Roots. California: Minnesota Society of Arboriculture, 2000.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.