Folkways : a study of the sociological importance of usages, manners, customs, mores, and morals / William Graham Sumner ... with a special introduction by William Lyon Phelps. Sumner, William Graham. Manners and customs. GT75 .S8 1940 390 SUF Includes bibliographical references and index. New York : Ginn and Company, c1940. c1940. 1940 Text xiv, 692 p. : eng