TY - BOOK AU - Rubin,Allen AU - Babbie,Earl R. TI - Essential research methods for social work SN - 9780495604372 (pbk.) AV - HV11 .R8 2010 PY - 2010/// CY - Belmont, CA PB - Brooks/Cole, Cengage Learning KW - Social service KW - Research KW - Methodology N1 - Includes bibliographical references (p. 347-352) and index ER -