Hess, Adolf, <br/><br/>
Trigonometry / 
Adolf Hess. 
 - İstanbul :  Arı Kitabevi Matbaası,  1971. 
 - 136 p.;  ill,  26 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry
<br/><br/><label>LC Class. No.: </label>QA531