APA (7th ed.) Citation

Ballestrem, K. G., Belardinelli, S., & Cornides, T. Church and education in Europe.

Chicago Style (17th ed.) Citation

Ballestrem, Karl Graf, Sergio Belardinelli, and Thomas Cornides. Church and Education in Europe.

MLA (9th ed.) Citation

Ballestrem, Karl Graf, et al. Church and Education in Europe.