Cochran, D., Kalkwarf, K., Burnsvold, M. Plaque and calculus removal. Chicago: Quintessence Publishing Co, 1994 109 p. 0-86715-285-0.
Cochran, D., Kalkwarf, K., Burnsvold, M. Plaque and calculus removal. Chicago: Quintessence Publishing Co, 1994 109 p. 0-86715-285-0.
Cochran, D., Kalkwarf, K., Burnsvold, M. (1994) Plaque and calculus removal, Chicago: Quintessence Publishing Co 109 p. 0-86715-285-0.
Cochran, D., Kalkwarf, K., & Burnsvold, M. (1994). Plaque and calculus removal. Considerations for the professional. Chicago: Quintessence Publishing Co, 109 p.
Cochran D, Kalkwarf K, Burnsvold M. Plaque and calculus removal: Considerations for the professional. Chicago: Quintessence Publishing Co; 1994. p. 109 p. ISBN: 0-86715-285-0.