Practical surveying guide to celestial observations 
Subtitle: b a compendium of notes, examples, tables, figures, helpful hints and HP-41, HP-42 and HP-48 programs ... directions from celestial observations
Publisher: P.O.B. Pub. Co
Published: 1990
Language: eng
Format: Unknown Binding
Number of pages: 158
ISBN-13: 9780962412400
Subjects: Azimuth; Surveying