LOCK (J B) <br/><br/>
Treatise on elementary trigonometry 

 - London  Macmillan & Co. Ltd.  1895 
<br/><br/><label>Subjects--Topical Terms: </label><br/>trigonometry<br/>Treatise<br/>on<br/>elementary
<br/><br/><label>Dewey Class. No.: </label>512/29