Citazione Stile APA (7a Edizione)

O'Neill, H., & Koering, U. (1948). The picture story of the Philippines. D. McKay.

Citazione stile Chigago Style (17a edizione)

O'Neill, Hester, e Ursula Koering. The Picture Story of the Philippines. Philadelphia: D. McKay, 1948.

Citatione MLA (9a ed.)

O'Neill, Hester, e Ursula Koering. The Picture Story of the Philippines. D. McKay, 1948.