Koos, Earl Lomon,  1905-1960 <br/><br/>
Families in trouble / 
Earl Lomon Koos with a preface by Robert S. Lynd 
 - New York :  Russell & Russell,  1973 
 - 134 p. ;  24 cm. 
<br/><br/><label>LCCN: </label>72-086976 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social case work<br/>Problem family--New York (City)
<br/><br/><label>Subjects--Geographic Terms: </label><br/>New York (City)--Poor