De Leon, S. O. (1984). Police primer. National Bookstore.
Chicago Style (17th ed.) CitationDe Leon, Sixto O. Police Primer. Metro Manila: National Bookstore, 1984.
MLA (9th ed.) CitationDe Leon, Sixto O. Police Primer. National Bookstore, 1984.
Warning: These citations may not always be 100% accurate.