London, Collins, 1969. Green cloth gilt. In good, unclipped dustwrapper, the spine a little faded and chipped to head. Spine a little faded through the dustwrapper, but otherwise a very good copy of the Second Edition. pp. xvii, 254. With 52 colour photographs, 29 in black and white, 20 maps and 15 diagrams.
London, Collins, 1975. Green cloth gilt. In good, slightly creased, price-clipped dustwrapper, the patches of red a little faded. In the publisher's plastic wrap. Top edge a little marked, but a good copy of the 1975 reprint. pp. 288. With 4 colour plates, 24 in black and white, 64 text figures and 18 tables.