APA (7th ed.) Citation

Korboński, S. (1981). The Polish underground state: A guide to the underround, 1939-1945. Hippocrene Books.

Chicago Style (17th ed.) Citation

Korboński, Stefan. The Polish Underground State: A Guide to the Underround, 1939-1945. New York: Hippocrene Books, 1981.

MLA (9th ed.) Citation

Korboński, Stefan. The Polish Underground State: A Guide to the Underround, 1939-1945. Hippocrene Books, 1981.