by by J.E. Pearce, A.G. Vince and M.A. Jenner with K.H. Armitage and R.A. Rattray.
ISBN: 0903290278 (pbk. : v. 2) ISBN: 9781901992939 (hbk. : v. 5) Author: Pearce, J. E. Publication & Distribution: London . London and Middlesex Archaeological Society, (c)1985-<2010> Author: Vince, A. G. Author: Jenner, M. A. Author: Blackmore, Lyn.
ISBN: 091279917X (pbk.) Author: Ravenstein, Charles A. Publication & Distribution: Washington, D.C. . Office of Air Force History, United States Air Force . For sale by the Supt. of Docs., U.S. G.P.O., (c)1986.