APA Style
Gray, Leon. (2007).
Periodic table .
:
Grolier Educational.
Chicago Style
Gray, Leon.
Periodic table.
:
Grolier Educational,
2007.
Text.
MLA Style
Gray, Leon.
Periodic table.
:
Grolier Educational,
2007.
Text.
Turabian Style
Gray, Leon.
Periodic table.
:
Grolier Educational,
2007.
Print.