APA (7th ed.) Citation

Drachmann, A. B. (1922). Atheism in Pagan antiquity. Gyldendal.

Chicago Style (17th ed.) Citation

Drachmann, A. B. Atheism in Pagan Antiquity. London Copenhagen Christiania: Gyldendal, 1922.

MLA (8th ed.) Citation

Drachmann, A. B. Atheism in Pagan Antiquity. Gyldendal, 1922.