APA (7th ed.) Citation

Ridley Matt. (2007). Francis crick discoverer of the genetic code. Harper collins publishers.

Chicago Style (17th ed.) Citation

Ridley Matt. Francis Crick Discoverer of the Genetic Code. New York: Harper collins publishers, 2007.

MLA (9th ed.) Citation

Ridley Matt. Francis Crick Discoverer of the Genetic Code. Harper collins publishers, 2007.

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