Popov, H. (1970). Tortured for his faith: An epic of christian courage and heroism in our day. Zondervan.
Lua i Stíl Chicago (17ú heag.)Popov, Haralan. Tortured for His Faith: An Epic of Christian Courage and Heroism in Our Day. Grand Rapids, MI: Zondervan, 1970.
Lua MLA (9ú heag.)Popov, Haralan. Tortured for His Faith: An Epic of Christian Courage and Heroism in Our Day. Zondervan, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.