APA

Eley B., Manson J. D. & Soory M. (2010). Periodontics. London: Saunders Elsevier.

Chicago

Eley B.M, Manson J D and Soory M. 2010. Periodontics. London: Saunders Elsevier.

Harvard

Eley B., Manson J. D. and Soory M. (2010). Periodontics. London: Saunders Elsevier.

MLA

Eley B.M, Manson J D and Soory M. Periodontics. London: Saunders Elsevier. 2010.