APA (7th ed.) Citation

Turnbull, W. (1929). Among the Ilongots twenty years ago.

Chicago Style (17th ed.) Citation

Turnbull, Wilfrid. Among the Ilongots Twenty Years Ago. 1929.

MLA (9th ed.) Citation

Turnbull, Wilfrid. Among the Ilongots Twenty Years Ago. 1929.

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