Wahi, P. N. <br/><br/>
Histological typing of oral and oropharyngeal tumours  [slide] / 
[by] P.N. Wahi ; in collaboration with B. Cohen, Usha K. Luthra, [and] H. Torloni. 
 - Geneva :  World Health Organization,  1971. 
 - International histological classification of tumours ;  no. 4 .
<br/><br/> Boxed set. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pharynx -- Tumors.--Pharynx -- Tumors.<br/>Mouth -- Tumors.--Mouth -- Tumors.<br/>Tumors -- Classification.--Tumors -- Classification.<br/>Histology, Pathological.