Journal of Hydrology. Vol. 6 No. 3 (1968). 

 - Amsterdam : North-Holland Publishing Company.  [date of publication not identified] 
 - p. 
<br/><br/> It contains of Papers, Book Reviews and Notes on June 1968 in Vol. 6 No. 3. 
<br/><br/>Water level probe / K. H. McGary, M. Wilhelmsen and P. Boren. Time variant ground water flow by resistance network analogues / R. Herbert. New enrichment and multiple sampling procedures to investigate radioactive tracer mixing in a small river / P. R. B. Ward and P. Wurzel. One dimensional gravity drainage of uniform columns of porous materials / F. D. Whisler and K. K. Watson. Spring transpiration of three desert species / N. Stark. Measuring the hydraulic potential of ground water with the hydraulic potential probe / B. Fokkens and J. Weijenberg. New trends in hydrology after Prof. Ven Te Chow / F. Dixey. Notes section. Book reviews.