00790nam0 2200253 450 00002486720090323162734.020090323d1976----km-y0itay50------baengGBa-------001yy<<The >>sextant simplifieda practical explanation of the use of the sextant at seaby Oswald M. Watts6th ed.LondonReed197698 p., [1] c. di tav.ill.21 cm<<The >>sextant simplified43703Sestante623.8620NaviWatts,Oswald Martin633312ITUNIPARTHENOPE20090323RICAUNIMARC000024867S 623.86/21S A 1057DSA2009Sextant simplified43703UNIPARTHENOPE