Shores, Louis. <br/><br/>
Basic reference sources :  an introduction to materials and methods / 
by Louis Shores, with a chapter on science reference sources by Helen Focke. 
 - Chicago :  American Library Association,  c1954. 
 - ix, 378 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reference books--Bibliography.<br/>Reference services (Libraries)