Previous ed.: edited by H.C.J. Duijker and E.H. Jacobson. Assen : Royal Van Gorcum, 1966.
Includes index.
International directory of psychologists, exclusive of the U.S.A ... ISBN 0444854924. Published by North-Holland Publishing Co. for the International Union of Psychological Science in 1980. Publication and catalogue information, links to buy online and reader comments.