Algal bioassays with leachates and distillates from western coal / 
David Z. Gerhart...[et al.] 
 - Washington :  United States Government Printing Office,  1980 
 - 69 p. ;  28 cm. 
 - EPA-600/3-80-051 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal--Geology<br/>Peat--Geology
<br/><br/><label>Dewey Class. No.: </label>553.24