Gibson, G. R.; Forster, J. and Wood. M. J. — First steps in geometry, with, Working with squares, with, Measurement plus teacher's book, with, Elementary surveying. 4 books in the mathematical units series.

Evans Brothers Limited, 1969. First Edition. Softcover. 4 clean and tightly bound paperback originals, landscape format, stapled spines, pictorial covers, no inscriptions, appear little used, diagrams in the text. First: 44 pages. Squares: published 1971, 44 pages. Measurement: published 1971, 60 pages. Surveying: published 1970, 58 pages. Very Good.