By Simmel, Georg,.
Glencoe, Ill. Free Press 1950 .
lxiv, 445 p. , Contains translations of the author's Grundfragen der Soziologie, part of Soziologie, and the lecture, Die Grossstädte und das Geistesleben. 22 cm..

By Wolff, Kurt H..
Lanham, MD University Press of America 1983 .
viii, 274 p. , Rev. ed. of: Trying sociology. 1974. | Includes bibliographies and index. 22 cm..
0819135062 (alk. paper) | 0819135070 (pbk. : alk. paper)