TY  - BOOK
AU  - TORTU, Stephanie
TI  - A practical guide to research and service with hidden populations
SN  - 00205274889
U1  - 300.72 PRA 
PY  - 2002///
CY  - London, 
PB  - Ally an Bacon
KW  - Marginality Social - Research Untied states - Methodology
N1  - includes index, reference and bibliographical
ER  -