M. Ali, M. (2006). The relationship of tooth color to eye color, facial skin complexion and gingival pigmentation. , 18(1), 20-24.
Mohammed M. Ali. "The relationship of tooth color to eye color, facial skin complexion and gingival pigmentation". , 18, 1, 2006, 20-24.
M. Ali, M. (2006). 'The relationship of tooth color to eye color, facial skin complexion and gingival pigmentation', , 18(1), pp. 20-24.
M. Ali, M. The relationship of tooth color to eye color, facial skin complexion and gingival pigmentation. , 2006; 18(1): 20-24.