APA Style
Mayer, Mercer. ().
It's Earth Day! .
:
HarperCollins.
Chicago Style
Mayer, Mercer.
It's Earth Day!.
:
HarperCollins,
.
Text.
MLA Style
Mayer, Mercer.
It's Earth Day!.
:
HarperCollins,
.
Text.
Turabian Style
Mayer, Mercer.
It's Earth Day!.
:
HarperCollins,
.
Print.