Calahan, Harold Augustin, 1889- The sky and the sailor : a history of celestial navigation / Harold Augustin Calahan - New York : Harper, c1952 - xiii p., 21., 262 p. 11. : front., plates, charts, diagrs.. ; 21 cm. Subjects--Topical Terms: Ibn Khallikans--Biographical--Dictionaries Dewey Class. No.: 153