موسوعة الصخور والأحجار الكريمة والمستحاثات

This title has been authored by professionals working in Europe and uses a unique combination of systematic, methodical and concise easy-access text with superb color clinical photographs to help dental practitioners recognize the signs and symptoms of conditions affecting the soft tissues of the mouth (e.g. ulcers and oral cancer) as well as the oral effects of systemic diseases