Bederman, David J. Custom as a source of law - Cambridge ; New York : Cambridge University Press, 2010. - xiv, 266 p. ; ISBN: 9780521897044 (hbk. : alk. paper) 9780521721820 (pbk. : alk. paper) Subjects--Topical Terms: Customary law.Law Dewey Class. No.: 395:34 / BED