APA (7th ed.) Citation

Jenkins, L. (2004). Variation and universals in biolinguistics. Elsevier.

Chicago Style (17th ed.) Citation

Jenkins, Lyle. Variation and Universals in Biolinguistics. Amsterdam ; Boston: Elsevier, 2004.

MLA (9th ed.) Citation

Jenkins, Lyle. Variation and Universals in Biolinguistics. Elsevier, 2004.