APA (7th ed.) Citation

Calladine, C. R., & Drew, H. R. (1992). Understanding DNA : the molecule & how it works / by C.R. Calladine and Horace R. Drew: The molecule & how it works. Academic Press.

Chicago Style (17th ed.) Citation

Calladine, C. R., and Horace R. Drew. Understanding DNA : The Molecule & How It Works / by C.R. Calladine and Horace R. Drew: The Molecule & How It Works. London: Academic Press, 1992.

MLA (9th ed.) Citation

Calladine, C. R., and Horace R. Drew. Understanding DNA : The Molecule & How It Works / by C.R. Calladine and Horace R. Drew: The Molecule & How It Works. Academic Press, 1992.

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