APA (7th ed.) Zitazioa

Roberts, H. The Book of Old-Fashioned Flowers And Other Plants Which Thrive in the Open-Air of England.

Chicago Style (17th ed.) Zitazioa

Roberts, Harry. The Book of Old-Fashioned Flowers And Other Plants Which Thrive in the Open-Air of England.

MLA (9th ed.) Zitazioa

Roberts, Harry. The Book of Old-Fashioned Flowers And Other Plants Which Thrive in the Open-Air of England.