Murdoch, Bytom. <br/><br/>
Streamkeeper's field guide :  watershed inventory and stream monitoring methods 
/ by Bytom Murdoch [et all...] 
 -  The Adopt-A-Stream Foundation,  1991. 
 - xv, 296 p. ;  26 cm. 
<br/><br/><label>ISBN: </label>0965210901