Schleyer, T., Spallek, H., Spallek, G. The global village of dentistry. Chicago: Quintessence Publishing Co, 1998 176 p. 0-86715-345-8.
Schleyer, T., Spallek, H., Spallek, G. The global village of dentistry. Chicago: Quintessence Publishing Co, 1998 176 p. 0-86715-345-8.
Schleyer, T., Spallek, H., Spallek, G. (1998) The global village of dentistry, Chicago: Quintessence Publishing Co 176 p. 0-86715-345-8.
Schleyer, T., Spallek, H., & Spallek, G. (1998). The global village of dentistry. Internet, intranet,online services for dental professionals. Chicago: Quintessence Publishing Co, 176 p.
Schleyer T, Spallek H, Spallek G. The global village of dentistry: Internet, intranet,online services for dental professionals. Chicago: Quintessence Publishing Co; 1998. p. 176 p. ISBN: 0-86715-345-8.