APA (7th ed.) Citation

Groot, I. F. d. (1930). De SS. Trinitate. Pontificia Universitate Gregoriana.

Chicago Style (17th ed.) Citation

Groot, I. F. de. De SS. Trinitate. Romae: Pontificia Universitate Gregoriana, 1930.

MLA (9th ed.) Citation

Groot, I. F. de. De SS. Trinitate. Pontificia Universitate Gregoriana, 1930.

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