Practical astronomy / a text book for engineering schools and a manual of field methods
Hosmer, George L.
Practical astronomy / a text book for engineering schools and a manual of field methods - London John wiley 1956 - xv,355p.
520 / H83P
Practical astronomy / a text book for engineering schools and a manual of field methods - London John wiley 1956 - xv,355p.
520 / H83P