APA Style
Hartmann, William K.. (1978).
Astronomy : the cosmic journey (Cet.2).
California:
Wodsworth Publishing.
Chicago Style
Hartmann, William K..
Astronomy : the cosmic journey.
Cet.2
California:
Wodsworth Publishing,
1978.
Text.
MLA Style
Hartmann, William K..
Astronomy : the cosmic journey.
Cet.2
California:
Wodsworth Publishing,
1978.
Text.
Turabian Style
Hartmann, William K..
Astronomy : the cosmic journey.
Cet.2
California:
Wodsworth Publishing,
1978.
Print.