Ynion, Eugenio J. <br/><br/>
Terrestrial navigation 2 /  
Eugenio J. Ynion. 
 - Pasig City:  Philippine Foundation for Maritime Teaching Aids, Inc. and the Author,  c2003. 
 - 116 pages :  ill., b & w ;  23 cm. 
<br/><br/><label>ISBN: </label>9710306065 
<br/><br/><label>LC Class. No.: </label>FIL VK 555  / Y55 2003