APA aipamena

Williams, B., & Kramer, J. Native ecuadorian orchids: Rodriguezia-zygosepalum.

Chicago Style aipamena

Williams, Brian, and Jack Kramer. Native Ecuadorian Orchids: Rodriguezia-zygosepalum.

MLA aipamena

Williams, Brian, and Jack Kramer. Native Ecuadorian Orchids: Rodriguezia-zygosepalum.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.