Bertlett, F.C. . The Study of Society: Methods and Problems / Textual Documents F.C. Bertlett...... - 1st ed. / - London : Kegan Paul, trench, Trubner & Co. , 1946. - 498p. ; 18cm. Index Subjects--Index Terms: Sociology G-Biology Dewey Class. No.: 572.7 / B 284 S