Gaya APA

Johnston, Mark W., Marshall, Greg W.. (2009). Sales Force management ninth edition (ninth edition). Boston: McGraw-Hill Irwin.

Gaya Chicago

Johnston, Mark W., Marshall, Greg W.. Sales Force management ninth edition. ninth edition Boston: McGraw-Hill Irwin, 2009. MM.

Gaya MLA

Johnston, Mark W., Marshall, Greg W.. Sales Force management ninth edition. ninth edition Boston: McGraw-Hill Irwin, 2009. MM.

Gaya Turabian

Johnston, Mark W., Marshall, Greg W.. Sales Force management ninth edition. ninth edition Boston: McGraw-Hill Irwin, 2009. MM.