Citazione Stile APA (7a Edizione)

Helmstadter, R. (1997). Freedom and religion in the nineteenth century. Stanford University Press.

Citazione stile Chigago Style (17a edizione)

Helmstadter, Richard. Freedom and Religion in the Nineteenth Century. Palo Alto, Estados Unidos: Stanford University Press, 1997.

Citatione MLA (9a ed.)

Helmstadter, Richard. Freedom and Religion in the Nineteenth Century. Stanford University Press, 1997.