TY - BOOK AU - Sommer,Barbara Baker AU - Sommer,Robert TI - A practical guide to behavioral research: tools and techniques SN - 0195104196 (paper : acidfree paper) U1 - 150.72 PY - 1997/// CY - New York PB - Oxford University Press KW - Social sciences KW - Research KW - Methodology KW - Psychology KW - Data processing ER -