TY - BOOK AU - Degenne,Alain AU - Forse,Michel TI - Introducing social networks SN - 0761956034 : U1 - 384.54065 PY - 1999/// CY - London PB - SAGE KW - Social networks KW - Research KW - Methodology N1 - Includes bibliographical references: p. 229-240 and indexes ER -