Manual for determination of astronomical latitude and longitude :  for topographic mapping. 

 - Ottawa :  Dep.of the Interior,  1934. 
 - 262 p. :  il. ;  25 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>TOPOGRAFIA<br/>Latitud<br/>Longitud
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Libro
<br/><br/><label>Universal Decimal Class. No.: </label>526.6