Churchil, G. A. .. e. (1990). Sales Force Management Planning, Implementation And Control Gilbert A. Churchil, Neil M Ford And Orville C. Walker. Irwin.
Style de citation Chicago (17e éd.)Churchil, Gilbert A .. et..al. Sales Force Management Planning, Implementation And Control Gilbert A. Churchil, Neil M Ford And Orville C. Walker. Irwin, 1990.
Style de citation MLA (8e éd.)Churchil, Gilbert A .. et..al. Sales Force Management Planning, Implementation And Control Gilbert A. Churchil, Neil M Ford And Orville C. Walker. Irwin, 1990.
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