Gaya APA

Gschwandtner, G. (2006). Sales Scripts That Close Every Deal: 420 tested responses to 30 of the most difficult cutomer objections . New York: McGraw-Hill.

Gaya MLA

Gschwandtner, Gerhard. "Sales Scripts That Close Every Deal: 420 tested responses to 30 of the most difficult cutomer objections". New York: McGraw-Hill, 2006. Text.