APA (7th ed.) Citation

Hall, E. (2011). Beneath the shadow of the Porta Nigra: Karl Marx and the ruins of Trier.

Chicago Style (17th ed.) Citation

Hall, Edith. Beneath the Shadow of the Porta Nigra: Karl Marx and the Ruins of Trier. 2011.

MLA (9th ed.) Citation

Hall, Edith. Beneath the Shadow of the Porta Nigra: Karl Marx and the Ruins of Trier. 2011.

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