Journal of Hydrology. Vol. 15 No. 4 (1972). 

 - Amsterdam : North-Holland Publishing Company.  [date of publication not identified] 
 - p. 
<br/><br/> It contains of Papers, Book Reviews and Notes on April 1972 in Vol. 15 No. 4. 
<br/><br/>Theory of stochastic modelling of watershed systems / V. T. Chow and T. Prasad. Available soil water : time distribution in a warm season rangeland / H. A. Schreiber and N. G. Sutter. Two and three dimensional infiltration : seepage from irrigation channels and infiltrometer rings / E. G. Youngs. Water table drawdown around an open ditch in organic soils / D. H. Boelter. Book reviews. Notes. Guide to authors. Author's index.