APA (7th ed.) Citation

Bolshakoff, S. (1977). Russian mystics. Cistercian studies series.

Chicago Style (17th ed.) Citation

Bolshakoff, Sergius. "Russian Mystics." Cistercian Studies Series 1977.

MLA (8th ed.) Citation

Bolshakoff, Sergius. "Russian Mystics." Cistercian Studies Series, 1977.

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