Gaya APA
Glencoe Earth Science. ([s.a.]).
New York:
[s.n.].
Gaya Chicago
Glencoe Earth Science.
.
New York:
[s.n.],
[s.a.].
Text.
Gaya MLA
Glencoe Earth Science.
.
New York:
[s.n.],
[s.a.].
Text.
Gaya Turabian
Glencoe Earth Science.
New York:
[s.n.],
[s.a.].
Print.