Walker, Orville C

Marketing Management : A Strategic Approach by: Walker, Orville C; Boyal, Harper W (Language materials, printed)

Marketing strategy : planning and implementation by: Larreche, Jean-Claude; Walker, Orville C; Boyd, Harper W (Language materials, printed)

Churchill/Ford/Walker's sales force management by: Marshall, Greg W; Johnston, Mark W; Churchill, Gilbert A; Ford, Neil M; Walker, Orville C (Language materials, printed)