Cita APA (7th ed.)

Nicholl, D. S. (2008). An Introduction to genetic engineering (3rded.). U.pr..

Cita Chicago (17th ed.)

Nicholl, Desmond S.T. An Introduction to Genetic Engineering. 3rded. Cambridge: U.pr., 2008.

Cita MLA (9th ed.)

Nicholl, Desmond S.T. An Introduction to Genetic Engineering. 3rded. U.pr., 2008.