APA (7th ed.) Citation

Lewy, G. (1999). Himmler and the 'racially pure gypsies'. Journal of contemporary history.

Chicago Style (17th ed.) Citation

Lewy, Guenter. "Himmler and the 'Racially Pure Gypsies'." Journal of Contemporary History 1999.

MLA (8th ed.) Citation

Lewy, Guenter. "Himmler and the 'Racially Pure Gypsies'." Journal of Contemporary History, 1999.

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