TY  - BOOK
AU  - Littlehales,G.W.
ED  - United States
TI  - The sumner line of position furnished ready to lay down upon the chart by means of tables of simltaneous hour angle and azimuth of the navigator's stars. Between 27ê and 63ê of declination, latitude 60ê N. to 60ê S.
AV  - VK 569 S86.1925
PY  - 1925///
CY  - Washington, D. C.
PB  - Government Printing Office
KW  - Navegación -
KW  - Tablas
N1  - Second edition, 1933, has title: The Sumner line of position furnished ready to lay down upon the chart by means of tables of simultaneous hour angle and azimuth of celestial bodies; "The plan of arrangement and scope of these tables, as well as the method of using them in navigation, were conceived by Mr. G. W. Littlehales, C. E., hydrolic engineer, Hydrographic office, Washington, D. C."--Pref., p. iii
ER  -