APA (7th ed.) Citation

(2004). The rotary wankel engine, an alternative to the reciprocating engine.

Chicago Style (17th ed.) Citation

The Rotary Wankel Engine, an Alternative to the Reciprocating Engine. 2004.

MLA (8th ed.) Citation

The Rotary Wankel Engine, an Alternative to the Reciprocating Engine. 2004.

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