Cita APA (7a ed.)

Grace, A., & Smales, F. (1989). Periodontal control; an effective system for diagnosis, selection, control and treatment planning in general practice. Quintessence Pub.

Cita Chicago Style (17a ed.)

Grace, A.M, y F.C Smales. Periodontal Control; an Effective System for Diagnosis, Selection, Control and Treatment Planning in General Practice. London: Quintessence Pub, 1989.

Cita MLA (9a ed.)

Grace, A.M, y F.C Smales. Periodontal Control; an Effective System for Diagnosis, Selection, Control and Treatment Planning in General Practice. Quintessence Pub, 1989.