APA (7th ed.) Zitazioa
Smith, F. E., Bliss, T. H., & Kerr, P. H. (1924). Approaches to world problems: By Earl of Birkenhead, General Tasker H. Bliss, Philip Henry Kerr.
Chicago Style (17th ed.) Zitazioa
Smith, Frederick Edwin, Tasker H. Bliss, eta Philip Henry Kerr. Approaches to World Problems: By Earl of Birkenhead, General Tasker H. Bliss, Philip Henry Kerr. New Haven, 1924.
MLA (9th ed.) Zitazioa
Smith, Frederick Edwin, et al. Approaches to World Problems: By Earl of Birkenhead, General Tasker H. Bliss, Philip Henry Kerr. 1924.
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