APA (7th ed.) Citation

Derus, G. Jan Karski and St. John Paul II: Two men on a similar mission.

Chicago Style (17th ed.) Citation

Derus, Greta. Jan Karski and St. John Paul II: Two Men on a Similar Mission.

MLA (9th ed.) Citation

Derus, Greta. Jan Karski and St. John Paul II: Two Men on a Similar Mission.

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