Astronomy : Principles and practice /
Roy, A. E.
Astronomy : Principles and practice / - 2nd ed. - Bristol : Adam Hilger ltd , 1982. - xv+342 27.5cms
Astronomy Mathematics
Astronomy : Principles and practice / - 2nd ed. - Bristol : Adam Hilger ltd , 1982. - xv+342 27.5cms
Astronomy Mathematics