Authors:
Prepared for the International Hydrological Programme within Project 3.1 (IHP-V)
By the Project Working Group:
A. Zaporozec (United States of America),
Co-ordinator and Editor
J. E. Conrad (South Africa)
R. Hirata (Brasil)
P-O. Johansson (Sweden)
J. C. Nonner (The Netherlands)
E. Romijn (The Netherlands)
J. M. C.Weaver (South Africa)