APA (7th ed.) Citation

Harfield, A. G. (1989). Pigeon to packhorse: The illustrated story of animals in army communications by Alan Harfield. Picton Publishing (Chippenham) Ltd..

Chicago Style (17th ed.) Citation

Harfield, A. G. Pigeon to Packhorse: The Illustrated Story of Animals in Army Communications by Alan Harfield. Chippenham: Picton Publishing (Chippenham) Ltd., 1989.

MLA (9th ed.) Citation

Harfield, A. G. Pigeon to Packhorse: The Illustrated Story of Animals in Army Communications by Alan Harfield. Picton Publishing (Chippenham) Ltd., 1989.