Smith, Thomas Lynn. Principles of inductive rural sociology / T. Lynn Smith, Paul E. Zopf, Jr. - Philadelphia : F. A. Davis Co., 1970. - 558 p. : ill., maps. Bibliography: p. 501-537. LCCN: 71095231 Subjects--Topical Terms: Sociology, Rural. Dewey Class. No.: 301.35/S662