Hart, William <br/><br/>Plane and spherical trigonometry with applications William Hart  - Boston :  D.C Heat and Company,  [1964]  - 124 pages  with Illustrations  21 cm. <br/><br/>Hart, W. ( 1964 } Plane and sphericl trigonometry with applications. Boston, D.C Heat and Company. <br/><br/><label>ISBN: </label>971081916X <br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry<br/><br/><label>LC Class. No.: </label>QA 533  / .H3251 1964