Cita APA (7a ed.)

Gratzik, P. (1981). Transportpaule. Hinstorff.

Cita Chicago Style (17a ed.)

Gratzik, Paul. Transportpaule. Rostock: Hinstorff, 1981.

Cita MLA (8a ed.)

Gratzik, Paul. Transportpaule. Hinstorff, 1981.