This is Sport-Diving Technique, by Diulio Marcante

This is Sport-Diving Technique, A Handbook for Beginners
Diulio Marcante

Hardback with dust jacket in cellophane cover.

144 pages
Colour photographs throughout
195 mm x 205 mm (approx. 7.75 in x 8 in)
1977, Nautical Publishing CompantyLtd, Lymington