Citazione Stile APA (7a Edizione)

Galman, M. I. (1977). Paombong: Its history and people. s.n.].

Citazione stile Chigago Style (17a edizione)

Galman, Mario I. Paombong: Its History and People. [S.l: s.n.], 1977.

Citatione MLA (9a ed.)

Galman, Mario I. Paombong: Its History and People. s.n.], 1977.