APA aipamena

Robinson, D. H. (1973). Giants in the sky: A history of the rigid airship. G T Foulis.

Chicago Style aipamena

Robinson, Douglas Hill. Giants in the Sky: A History of the Rigid Airship. Henley-on-Thames [Eng]: G T Foulis, 1973.

MLA aipamena

Robinson, Douglas Hill. Giants in the Sky: A History of the Rigid Airship. G T Foulis, 1973.