Citazione Stile APA (7a Edizione)

Helmer, C. (2004). Schleiermacher and Whitehead: Open systems in dialogue. Walter de Gruyter.

Citazione stile Chigago Style (17a edizione)

Helmer, Christine. Schleiermacher and Whitehead: Open Systems in Dialogue. Berlin ; New York: Walter de Gruyter, 2004.

Citatione MLA (9a ed.)

Helmer, Christine. Schleiermacher and Whitehead: Open Systems in Dialogue. Walter de Gruyter, 2004.