The IMS/Ayer directory of publications. 
 Ayer directory of publications. 

 - Philadelphia  IMS Press  1869- 
 - v.  29 cm. 
 - 
<br/><br/>Imprint varies: -1981, by Ayer Press. 
<br/><br/><label>LCCN: </label>evl00000894 //r83 
<br/><br/><label>Subjects--Topical Terms: </label><br/>American newspapers--Directories.<br/>Periodicals--Directories--United States<br/>Periodicals--Directories--Canada<br/>Canadian periodicals--Directories.<br/>Canadian newspapers--Directories.<br/>American periodicals--Directories.
<br/><br/><label>LC Class. No.: </label>Z6951  / .A97 
<br/><br/><label>Dewey Class. No.: </label>050.25  / A976 
<br/><br/><label>National Library of Medicine Call No.: </label>Z 6951 A976