Cita APA (7a ed.)

Pezzl, J. (1791). Loudon's Lebensgeschichte. [s.n.].

Cita Chicago Style (17a ed.)

Pezzl, Johann. Loudon's Lebensgeschichte. Wien: [s.n.], 1791.

Cita MLA (9a ed.)

Pezzl, Johann. Loudon's Lebensgeschichte. [s.n.], 1791.