APA Style
Gamble, Teri dan Michael Gamble. (1992).
SALES SCRIPTS THAT SELL! .
Amerika:
Amacom.
Chicago Style
Gamble, Teri dan Michael Gamble.
SALES SCRIPTS THAT SELL!.
Amerika:
Amacom,
1992.
Books.
MLA Style
Gamble, Teri dan Michael Gamble.
SALES SCRIPTS THAT SELL!.
Amerika:
Amacom,
1992.
Books.
Turabian Style
Gamble, Teri dan Michael Gamble.
SALES SCRIPTS THAT SELL!.
Amerika:
Amacom,
1992.
Books.