Sydney, Lansdowne Press, 1981. 4to. pp.289. Illustrated in colour and black & white illustrations, maps & diagrams. Original black cloth hardcover in pictorial dust wrapper. Very Good.
Weidenfeld & Nicolson, London.1996. 8vo. pp.504 with many black & white images and drawings.Original blue cloth in illustrated dust wrapper.
Published by New South Publishing and The University of New South Wales. 2011. Small square 4to. pp.228. Illustrated in colour and black & white.index, bibliography, notes. Original yellow hardcover with vignette on the upper board. in pictorial dust wrapper.
Faber, London, 1961. Second Edition.8vo.pp.280. index.black and white photographs and line drawings, a little toning Original hardcover with a little edge wear in fine price clipped dust wrapper.
New York, Published by Scholastic Book Services, 1969. Paperback, Third Printing.8vo. pp.128.Illustrated in black & white Endpapers and title page have sellotape marks .Pages toned uniformly. A Good working copy. The Discovery of Pluto.
Sothebys, 1993. Softcover catalogue 4to. 198 lots and addendum,colour and black and white plates Original quality pictorial wrappers.