Quisumbing, P. V. (1983). Beijing-Manila detente: Major issues. U.P. Law Center.
Chicago Style aipamenaQuisumbing, Purificacion Valera. Beijing-Manila Detente: Major Issues. Quezon City: U.P. Law Center, 1983.
MLA aipamenaQuisumbing, Purificacion Valera. Beijing-Manila Detente: Major Issues. U.P. Law Center, 1983.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.