Cita APA (7a ed.)

Baer, J. Incunabula Typographica. J. Baer.

Cita Chicago Style (17a ed.)

Baer, Joseph. Incunabula Typographica. Frankfurt: J. Baer.

Cita MLA (9a ed.)

Baer, Joseph. Incunabula Typographica. J. Baer.