APA (7th ed.) Citation

Tomás de Aquino 1220-1274 Santo. (1952). The summa theologica. Encyclopaedia Britannica.

Chicago Style (17th ed.) Citation

Tomás de Aquino 1220-1274 Santo. The Summa Theologica. Chicago: Encyclopaedia Britannica, 1952.

MLA (9th ed.) Citation

Tomás de Aquino 1220-1274 Santo. The Summa Theologica. Encyclopaedia Britannica, 1952.

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