A practical guide to research and service with hidden populations /
A practical guide to research and service with hidden populations / 
edited by Stephanie Tortu, Lloyd A. Goldsamt, Rahul Hamid. 
 - Boston, MA :  Allyn and Bacon,  c2002. 
 - xx, 236 p. :  ill. ;  24 cm. 
Includes bibliographical references and index.
0205274889
2001022423
Marginality, Social--Research--Methodology.--United States
Human services--United States.
HN90.M26 / P73 2002
305.5/6/0723
                        Includes bibliographical references and index.
0205274889
2001022423
Marginality, Social--Research--Methodology.--United States
Human services--United States.
HN90.M26 / P73 2002
305.5/6/0723