The American ephemeris and almanac for the year 1911. 

 - 2 
 - Washington  Bureau of Navegation  1910 
 - viii, 595 p.  il., mapas  27 cm. 
<br/><br/> L112 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Almanaques náuticos<br/>Efemérides<br/>Navegación
<br/><br/><label>LC Class. No.: </label>QB8  / .E7 A53