APA (7th ed.) Citation

Paul, O., & Pollak, O. (1942). Underground Europe calling. London: Victor Gollancz.

Chicago Style (17th ed.) Citation

Paul, Oscar, and Oscar Pollak. Underground Europe Calling. London: Victor Gollancz, 1942.

MLA (8th ed.) Citation

Paul, Oscar, and Oscar Pollak. Underground Europe Calling. London: Victor Gollancz, 1942.

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