APA (7th ed.) Citation

Estrup, H. F. J. (1817). Idea hierarchiae Romanae.

Chicago Style (17th ed.) Citation

Estrup, Hector Frederik Janson. Idea Hierarchiae Romanae. Hauniae, 1817.

MLA (8th ed.) Citation

Estrup, Hector Frederik Janson. Idea Hierarchiae Romanae. 1817.

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