Penggayaan APA
Walker, Richard. (2007).
The Heart In Action .
:
Grolier International Inc..
Chicago Style
Walker, Richard.
The Heart In Action.
:
Grolier International Inc.,
2007.
Text.
MLA Style
Walker, Richard.
The Heart In Action.
:
Grolier International Inc.,
2007.
Text.
Turabian Style
Walker, Richard.
The Heart In Action.
:
Grolier International Inc.,
2007.
Print.