Cita APA (7a ed.)

Huke, R. E., & Barcelon, J. B. (1972). Shadows on the land: An economic geography of the Philippines. Bookmark.

Cita Chicago Style (17a ed.)

Huke, Robert E., y José B. Barcelon. Shadows on the Land: An Economic Geography of the Philippines. Manila, etc.: Bookmark, 1972.

Cita MLA (9a ed.)

Huke, Robert E., y José B. Barcelon. Shadows on the Land: An Economic Geography of the Philippines. Bookmark, 1972.