TY  - BOOK
AU  - Vasta,Ross
TI  - Studying children: an introduction to research methods 
T2  - A Series of books in psychology
SN  - 0716710684
AV  - BF722 .V37
U1  - 155.4/072 VAS 
PY  - 1979///
CY  - San Francisco
PB  - W. H. Freeman
KW  - Child psychology
KW  - Methodology
KW  - Research
N1  - Includes bibliographies and indexes
ER  -