APA (7th ed.) Citation

Mackay, J. H., Schumm, G., & Reuter, G. (1972). The anarchists: A picture of civilization at the close of the nineteenth century. Revisionist Press.

Chicago Style (17th ed.) Citation

Mackay, John Henry, George Schumm, and Gabriele Reuter. The Anarchists: A Picture of Civilization at the Close of the Nineteenth Century. New York: Revisionist Press, 1972.

MLA (9th ed.) Citation

Mackay, John Henry, et al. The Anarchists: A Picture of Civilization at the Close of the Nineteenth Century. Revisionist Press, 1972.