Παραπομπή σε μορφή APA (7η εκδ.)

Harvard business school press, Barabba, V., & Zaltman, G. (1991). Hearing the voice of the market: Competitive advantage through creative use of market information. Harvard business school press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Harvard business school press, Vincent Barabba, και Gerald Zaltman. Hearing the Voice of the Market: Competitive Advantage Through Creative Use of Market Information. Boston: Harvard business school press, 1991.

Παραπομπή σε μορφή MLA (8th εκδ.)

Harvard business school press, et al. Hearing the Voice of the Market: Competitive Advantage Through Creative Use of Market Information. Harvard business school press, 1991.