APA (7th ed.) Citation

Caltex (Philippines) & De los Reyes, M. M. (1951). Philippines touring guide (41st ed.). s.n.

Chicago Style (17th ed.) Citation

Caltex (Philippines) and M. M. De los Reyes. Philippines Touring Guide. 41st ed. [Manilan: s.n, 1951.

MLA (9th ed.) Citation

Caltex (Philippines) and M. M. De los Reyes. Philippines Touring Guide. 41st ed. s.n, 1951.