Cita APA (7a ed.)

Pröhle, H. (1860). Philipp Melanchthon. [s.n.].

Cita Chicago Style (17a ed.)

Pröhle, Heinrich. Philipp Melanchthon. Berlin: [s.n.], 1860.

Cita MLA (9a ed.)

Pröhle, Heinrich. Philipp Melanchthon. [s.n.], 1860.