APA (7th ed.) Zitazioa

Sproul, R. C. (1997). Grace unknown: The heart of reformed theology. Baker.

Chicago Style (17th ed.) Zitazioa

Sproul, R. C. Grace Unknown: The Heart of Reformed Theology. Grand Rapids: Baker, 1997.

MLA (9th ed.) Zitazioa

Sproul, R. C. Grace Unknown: The Heart of Reformed Theology. Baker, 1997.