Cita APA (7a ed.)

Heyden, F. A. v. (1842). Theater. [s.n.].

Cita Chicago Style (17a ed.)

Heyden, Friedrich August von. Theater. Leipzig: [s.n.], 1842.

Cita MLA (9a ed.)

Heyden, Friedrich August von. Theater. [s.n.], 1842.