Acker, William L. <br/><br/>
Basic procedures for soil sampling and core drilling / 
W. L. Acker, III. 
 - Scranton:   Acker Drill,   1974.  
 - xvii, 246 p. :  ill., tables ;  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soils--Testing<br/>Soils--Sampling<br/>Core drilling
<br/><br/><label>Dewey Class. No.: </label>624.151