Cita APA (7th ed.)

GRIKSCHEIT GRAY M. (1981). HANDBOOK OF SELLING. JOHN WILEY AND SONS.

Cita Chicago (17th ed.)

GRIKSCHEIT GRAY M. HANDBOOK OF SELLING. NEW DELHI: JOHN WILEY AND SONS, 1981.

Cita MLA (9th ed.)

GRIKSCHEIT GRAY M. HANDBOOK OF SELLING. JOHN WILEY AND SONS, 1981.