APA (7th ed.) Citation

Grossu, S. (1975). The church in today's catacombs. Arlington House Publishers.

Chicago Style (17th ed.) Citation

Grossu, Sergiu. The Church in Today's Catacombs. New Rochelle, N.Y.: Arlington House Publishers, 1975.

MLA (9th ed.) Citation

Grossu, Sergiu. The Church in Today's Catacombs. Arlington House Publishers, 1975.