Penggayaan APA
Hartmann, William K.. (1985).
Astronomy : The Cosmic Journey (3).
Belmont, California:
Wadsworth Pubishing Company,.
Chicago Style
Hartmann, William K..
Astronomy : The Cosmic Journey.
3
Belmont, California:
Wadsworth Pubishing Company,,
1985.
Text.
MLA Style
Hartmann, William K..
Astronomy : The Cosmic Journey.
3
Belmont, California:
Wadsworth Pubishing Company,,
1985.
Text.
Turabian Style
Hartmann, William K..
Astronomy : The Cosmic Journey.
3
Belmont, California:
Wadsworth Pubishing Company,,
1985.
Print.