APA (7th ed.) Citation

Magno, R. A., & Skjolberg, H. (1971). Tourism in Northern Luzon. s.n.

Chicago Style (17th ed.) Citation

Magno, Roque Arrieta, and Hermund Skjolberg. Tourism in Northern Luzon. [S.l: s.n, 1971.

MLA (9th ed.) Citation

Magno, Roque Arrieta, and Hermund Skjolberg. Tourism in Northern Luzon. s.n, 1971.

Warning: These citations may not always be 100% accurate.