Gaya APA
Tim,Clifford, Mitten,Luana. (2009).
Rourke's World of Science Encyclopedia Vol 4: Earth Science .
Florida:
Rourke Publishing.
Gaya Chicago
Tim,Clifford, Mitten,Luana.
Rourke's World of Science Encyclopedia Vol 4: Earth Science.
Florida:
Rourke Publishing,
2009.
Text.
Gaya MLA
Tim,Clifford, Mitten,Luana.
Rourke's World of Science Encyclopedia Vol 4: Earth Science.
Florida:
Rourke Publishing,
2009.
Text.
Gaya Turabian
Tim,Clifford, Mitten,Luana.
Rourke's World of Science Encyclopedia Vol 4: Earth Science.
Florida:
Rourke Publishing,
2009.
Print.