Berman, A. (1982). Incorporating customary law. s.n.
Chicago Style aipamenaBerman, Alan. Incorporating Customary Law. Papuana New Guinea: s.n, 1982.
MLA aipamenaBerman, Alan. Incorporating Customary Law. s.n, 1982.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.