TY - BOOK AU - Ackroyd,Stephen AU - Hughes,J.A. TI - Data collection in context T2 - Aspects of modern sociology : Social research SN - 0582480159 : U1 - 300.72 19 PY - 1981/// CY - London, New York PB - Longman KW - Social sciences KW - Methodology KW - Research N1 - Includes index; Bibliography: p. [141]-150 ER -