APA (7th ed.) Citation

Quispel, G. (2000). The original doctrine of Valentinus the Gnostic.

Chicago Style (17th ed.) Citation

Quispel, Gilles. The Original Doctrine of Valentinus the Gnostic. 2000.

MLA (9th ed.) Citation

Quispel, Gilles. The Original Doctrine of Valentinus the Gnostic. 2000.

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