Citazione Stile APA (7a Edizione)

International Congress of the P. E. N. Clubs, 34th, 1966. (1968). The writer as independent spirit: Proceedings of the XXXIV Internationa P. E. N. Congress June 12-June 18, 1966. s.n.

Citazione stile Chigago Style (17a edizione)

International Congress of the P. E. N. Clubs, 34th, 1966. The Writer as Independent Spirit: Proceedings of the XXXIV Internationa P. E. N. Congress June 12-June 18, 1966. New York City: s.n, 1968.

Citatione MLA (9a ed.)

International Congress of the P. E. N. Clubs, 34th, 1966. The Writer as Independent Spirit: Proceedings of the XXXIV Internationa P. E. N. Congress June 12-June 18, 1966. s.n, 1968.