APA (7th ed.) Citation

Polish Labor Group (New York, N.Y.), & Polish Information Center (New York, N.Y.). (1943). Unconquered Poland. ["Poland Fights, " Polish Labor Group, assisted by Polish Information Center].

Chicago Style (17th ed.) Citation

Polish Labor Group (New York, N.Y.), and N.Y.) Polish Information Center (New York. Unconquered Poland. [New York, N.Y.]: ["Poland Fights, " Polish Labor Group, assisted by Polish Information Center], 1943.

MLA (8th ed.) Citation

Polish Labor Group (New York, N.Y.), and N.Y.) Polish Information Center (New York. Unconquered Poland. ["Poland Fights, " Polish Labor Group, assisted by Polish Information Center], 1943.

Warning: These citations may not always be 100% accurate.