APA (7th ed.) Citation

Groningen, G. v. (1967). First century gnosticism: Its origin and motifs. Brill.

Chicago Style (17th ed.) Citation

Groningen, G. van. First Century Gnosticism: Its Origin and Motifs. Leiden: Brill, 1967.

MLA (9th ed.) Citation

Groningen, G. van. First Century Gnosticism: Its Origin and Motifs. Brill, 1967.