Various authors, Editors: R. Gospodaric & P. Habic, hardback, 309 pages, Yugoslav Committee for International Hydrological Program, Third International Symposium of Underground Water Tracing, 1976.

After the decision of the 2nd scientific meeting for underground water tracing in Freiburg 1970 the organisation of the following meeting of this kind has been entrusted to Yugoslavia. The common wish to test different tracing methods and means in the region of Classical Karst with specific hydrologic and geologic conditions has been predominant.