APA (7th ed.) Citation

Schilling, B. (1975). Befreites Portugal (o.A.). Verl. der Nation.

Chicago Style (17th ed.) Citation

Schilling, Barbara. Befreites Portugal. o.A. Berlin: Verl. der Nation, 1975.

MLA (8th ed.) Citation

Schilling, Barbara. Befreites Portugal. o.A. Verl. der Nation, 1975.

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