Gaya APA
Stwertka, Albert. (2002).
A Guide to the elements .
New York:
Oxford University Press.
Gaya Chicago
Stwertka, Albert.
A Guide to the elements.
New York:
Oxford University Press,
2002.
Text.
Gaya MLA
Stwertka, Albert.
A Guide to the elements.
New York:
Oxford University Press,
2002.
Text.
Gaya Turabian
Stwertka, Albert.
A Guide to the elements.
New York:
Oxford University Press,
2002.
Print.