APA

Grace A. M., Smales F. C., . (1989). Periodontal control. London: Quintessence Publishing.

Chicago

Grace A M, Smales F C, . 1989. Periodontal control. London: Quintessence Publishing.

Harvard

Grace A. M., Smales F. C., . (1989). Periodontal control. London: Quintessence Publishing.

MLA

Grace A M, Smales F C, . Periodontal control. London: Quintessence Publishing. 1989.