Swain, Roger B. <br/><br/>
Field days :  journal of an itinerant biolgist / 
by Roger B. Swain 
 - New York :  Charles Scribner's,  1983 
 - 217 p. ;  21 cm. 
<br/><br/><label>ISBN: </label>068417989X 
<br/><br/><label>LCCN: </label>83-011507 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology--Addresses, essays, lectures<br/>Horticulture--Addresses, essays, lectures<br/>Man--Influence on nature--Addresses, essays, lectures