Datapro/McGraw-Hill :  guide to CP/M software. 

 - New York :  McGraw-Hill,  1983. 
<br/><br/><label>ISBN: </label>007015404X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer programs -- Purchasing.--Computer programs -- Purchasing.<br/>CP/M(computer operating system.