Martin, R. G. (1987). Political law reviewer (1987 ed.). Premium Book Store.
Chicago Style aipamenaMartin, Ruperto G. Political Law Reviewer. 1987 ed. Manila: Premium Book Store, 1987.
MLA aipamenaMartin, Ruperto G. Political Law Reviewer. 1987 ed. Premium Book Store, 1987.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.