Gaya APA
Gschwandtner, Gerhard. (2006).
Sales scripts that close every deal : Gerhard Gschwandtner .
New York:
McGraw-Hill.
Gaya Chicago
Gschwandtner, Gerhard.
Sales scripts that close every deal : Gerhard Gschwandtner.
New York:
McGraw-Hill,
2006.
Buku.
Gaya MLA
Gschwandtner, Gerhard.
Sales scripts that close every deal : Gerhard Gschwandtner.
New York:
McGraw-Hill,
2006.
Buku.
Gaya Turabian
Gschwandtner, Gerhard.
Sales scripts that close every deal : Gerhard Gschwandtner.
New York:
McGraw-Hill,
2006.
Buku.