Cita APA (7th ed.)

Johnston, M. W., & Marshall, G. W. (2022). Contemporary selling: Building relationships, creating value (Sixth edition.). Routledge.

Cita Chicago (17th ed.)

Johnston, Mark W., i Greg W. Marshall. Contemporary Selling: Building Relationships, Creating Value. Sixth edition. Abingdon, Oxon: Routledge, 2022.

Cita MLA (9th ed.)

Johnston, Mark W., i Greg W. Marshall. Contemporary Selling: Building Relationships, Creating Value. Sixth edition. Routledge, 2022.