APA (7th ed.) Citation

Nipkow, T., & Klein, G. (2014). B Symbols. Concrete Semantics.

Chicago Style (17th ed.) Citation

Nipkow, Tobias, and Gerwin Klein. "B Symbols." Concrete Semantics 2014.

MLA (9th ed.) Citation

Nipkow, Tobias, and Gerwin Klein. "B Symbols." Concrete Semantics, 2014.

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