PORSCHE RACING CARS OF THE 70s (Frere 1980)

 1980 hardback, 163 pages.

Famous racing journalist Paul Frere charts the decade of development from 917 and 908 Le Mans cars via Can Am to the 935 Gp 5 and 936 Gp 6 cars that dominated the rather reduced sports car scene by the end of the 70's

Quite technical in it's treatment of each model and how it evolved. 

Fine book and  jacket