APA

mihalas d., . (1968). galctic astronomy. london: w.h. freeman and co.

Chicago

mihalas dimitri, . 1968. galctic astronomy. london: w.h. freeman and co.

Harvard

mihalas d., . (1968). galctic astronomy. london: w.h. freeman and co.

MLA

mihalas dimitri, . galctic astronomy. london: w.h. freeman and co. 1968.