APA (7th ed.) Citation

Posnack, E. R. (1956). World without barriers: A perspective view of our present and future in a world of economic and ideological conflict. Morrow.

Chicago Style (17th ed.) Citation

Posnack, Emanuel Robert. World Without Barriers: A Perspective View of Our Present and Future in a World of Economic and Ideological Conflict. New York: Morrow, 1956.

MLA (9th ed.) Citation

Posnack, Emanuel Robert. World Without Barriers: A Perspective View of Our Present and Future in a World of Economic and Ideological Conflict. Morrow, 1956.