Boltyanskii

The Decomposition of Figures into Smaller Parts (Popular Lectures in Mathematics) by Boltyanskii Chicago University Press Paperback 1 April 1980 from£23.75 | RRP: ~~£11.5~~
Intuitive Combinatorial Topology (Universitext) by V.G. Boltyanskii,V.A. Efremovich Springer Hardcover 1 May 2001 from£19.23 | RRP: ~~£35.99~~
Hyperbolic Functions: with Configuration Theorems and Equivalent and Equidecomposable Figures (Dover Science Books) by V. G Shervatov,B. I Argunov,L.A. Skornjakov,V.G. Boltyanskii Dover Publications Inc. Paperback 27 April 2007 from£N/A | RRP: ~~£9.99~~