Citazione Stile APA (7a Edizione)

Caltex (Philippines) & De los Reyes, M. M. (1951). Philippines touring guide (44th ed.). [s.n.].

Citazione stile Chigago Style (17a edizione)

Caltex (Philippines) e M. M. De los Reyes. Philippines Touring Guide. 44th ed. Manila: [s.n.], 1951.

Citatione MLA (9a ed.)

Caltex (Philippines) e M. M. De los Reyes. Philippines Touring Guide. 44th ed. [s.n.], 1951.