Cita APA (7a ed.)

Heerde, H. J. v., Gupta, S., & Wittink, D. R. (2002). The brand switching fraction of promotion effects: Unit sales versus elasticity decompositions. Marketing Science Institute.

Cita Chicago Style (17a ed.)

Heerde, Harald J. van, Sachin Gupta, y Dick R. Wittink. The Brand Switching Fraction of Promotion Effects: Unit Sales Versus Elasticity Decompositions. Cambridge, Massachusetts: Marketing Science Institute, 2002.

Cita MLA (9a ed.)

Heerde, Harald J. van, et al. The Brand Switching Fraction of Promotion Effects: Unit Sales Versus Elasticity Decompositions. Marketing Science Institute, 2002.