3-D spectacles as insert.
Originally published: 1970.
Bibliography: p.181-185. _ Includes index.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
The intelligent eye by R. L. Gregory. ISBN 029700476X. Published by Weidenfeld and Nicolson in 1971. Publication and catalogue information, links to buy online and reader comments.
