Bernas, Joaquin G. An introduction to public international law/ Joaquin G. Bernas - 1st ed. - Manila: Rex Book Store, c2002. - x, 418 p. ; 23 cm. ISBN: 971-23-3571-2. Subjects--Topical Terms: 1. Law. Dewey Class. No.: Fil. 341.20 B456i 2002