Cita APA (7th ed.)

Engel, J. E., & Stapf, P. (1969). Renaissance, Humanismus, Reformation. Francke.

Cita Chicago (17th ed.)

Engel, James E., i Paul Stapf. Renaissance, Humanismus, Reformation. Bern ; München: Francke, 1969.

Cita MLA (8th ed.)

Engel, James E., i Paul Stapf. Renaissance, Humanismus, Reformation. Francke, 1969.