Miaka 20 ya tume ya kudumu ya uchunguzi 

 - Dar es Salaam  Mpiga Chapa Mkuu wa Serikali  1988 
 - 80p.  21cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Governmental investigations
<br/><br/><label>LC Class. No.: </label>EAF PAM JQ3515.A6T3