The milky way /
Bok, Bart J. 1906-
The milky way / Bart J. Bok and Priscilla F. Bok. - 5th ed. - Cambridge, Mass. : Harvard University Press, 1981. - viii, 356 p. : ill. ; 24 cm. - The Harvard books on astronony .
Includes index.
0674575032
Milky Way.
The milky way / Bart J. Bok and Priscilla F. Bok. - 5th ed. - Cambridge, Mass. : Harvard University Press, 1981. - viii, 356 p. : ill. ; 24 cm. - The Harvard books on astronony .
Includes index.
0674575032
Milky Way.