TY - BOOK AU - Vasta,Ross TI - Studying children: an introduction to research methods T2 - A Series of books in psychology SN - 0716710676 U1 - 155.4072 PY - 1979/// CY - San Francisco PB - W. H. Freeman KW - Child psychology KW - Methodology KW - Research N1 - Includes bibliographies and indexes ER -