APA (7th ed.) Citation

Lundberg, F., & Mühlen, N. (1938). Amerikas 60 Familien.

Chicago Style (17th ed.) Citation

Lundberg, Ferdinand, and Norbert Mühlen. Amerikas 60 Familien. 1938.

MLA (8th ed.) Citation

Lundberg, Ferdinand, and Norbert Mühlen. Amerikas 60 Familien. 1938.

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