Citazione Stile APA (7a Edizione)

Simkins, P. D., & Wernstedt, F. L. (1971). Philippine migration: The settlement of the Digos-Padada Valley, Davao Province. Yale University Southeast Asia Studies.

Citazione stile Chigago Style (17a edizione)

Simkins, Paul D., e Frederick L. Wernstedt. Philippine Migration: The Settlement of the Digos-Padada Valley, Davao Province. [New Haven, Conn.]: Yale University Southeast Asia Studies, 1971.

Citatione MLA (9a ed.)

Simkins, Paul D., e Frederick L. Wernstedt. Philippine Migration: The Settlement of the Digos-Padada Valley, Davao Province. Yale University Southeast Asia Studies, 1971.