APA (7th ed.) Citation

Helmle, C. (2012). Waterpower. Jovis Verlag.

Chicago Style (17th ed.) Citation

Helmle, Christian. Waterpower. Berlin: Jovis Verlag, 2012.

MLA (8th ed.) Citation

Helmle, Christian. Waterpower. Jovis Verlag, 2012.

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