Cita APA (7th ed.)

Ylla, J. (1976). Salvaguardia social (ensayo de Derecho Penal) [microform]. Photoduplication Service,University of the Philippines Library.

Cita Chicago (17th ed.)

Ylla, Juan. Salvaguardia Social (ensayo De Derecho Penal) [microform]. Quezon City: Photoduplication Service,University of the Philippines Library, 1976.

Cita MLA (9th ed.)

Ylla, Juan. Salvaguardia Social (ensayo De Derecho Penal) [microform]. Photoduplication Service,University of the Philippines Library, 1976.