APA (7th ed.) Citation

Bergstein, E. (2011). Steinkohlenbergbau in Asturien.

Chicago Style (17th ed.) Citation

Bergstein, Edgar. Steinkohlenbergbau in Asturien. 2011.

MLA (9th ed.) Citation

Bergstein, Edgar. Steinkohlenbergbau in Asturien. 2011.

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