Dyfyniad APA

Johnson, K. (1988). Marketing 1989-90. Harvard Business School Career Guide.

Dyfyniad Arddull Chicago

Johnson, Kthleen. Marketing 1989-90. Boston: Harvard Business School Career Guide, 1988.

Dyfyniad MLA

Johnson, Kthleen. Marketing 1989-90. Harvard Business School Career Guide, 1988.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.