Reason of sociology : George Simmel and beyond / by Kauko Pietila. Pietilä, Kauko. Simmel, Georg, 1858-1918. Sociology History 20th century. Social change History. Sociology Philosophy. HM447 .P54 2011 301 22 PIR Includes bibliographical references and index. London : SAGE, c 2011. c 2011. 2011 Text 202 p. ; eng SAGE studies in international sociology ; 57 Sage studies in international sociology ; 57.