Zinsser, William..
On writing well : an informal guide to writing nonfiction. - 3-e edition, revised and enlarged /

. - New York  : Harper & Row, Publishers,  1985 
. - x, 246 p.  21 cm. 
<br/>К.: Бібліогр. : с. 239-240. 
<br/><label>  ISBN: </label>0-06-015409-8