APA (7th ed.) Citation

Portner, R. (1961). Bevor die Romer kamen. Econ.

Chicago Style (17th ed.) Citation

Portner, Rudolf. Bevor Die Romer Kamen. Dusseldorf: Econ, 1961.

MLA (9th ed.) Citation

Portner, Rudolf. Bevor Die Romer Kamen. Econ, 1961.

Warning: These citations may not always be 100% accurate.