Miller, R., Heiman, S. Conceptual selling. s.l.: Miller Heiman, 1987 311 p. 0-8050-0410-6.
Miller, R., Heiman, S. Conceptual selling. s.l.: Miller Heiman, 1987 311 p. 0-8050-0410-6.
Miller, R., Heiman, S. (1987) Conceptual selling, s.l.: Miller Heiman 311 p. 0-8050-0410-6.
Miller, R., & Heiman, S. (1987). Conceptual selling. The revolutionary system for face-to-face selling used by the world's best companies. s.l.: Miller Heiman, 311 p.
Miller R, Heiman S. Conceptual selling: The revolutionary system for face-to-face selling used by the world's best companies. s.l.: Miller Heiman; 1987. p. 311 p. ISBN: 0-8050-0410-6.