Παραπομπή APA

Stalk, G., & Butman, J. (2008). Five future strategies you need right now. Harvard Business School.

Παραπομπή Chicago Style

Stalk, George, και John Butman. Five Future Strategies You Need Right Now. Boston: Harvard Business School, 2008.

Παραπομπή MLA

Stalk, George, και John Butman. Five Future Strategies You Need Right Now. Harvard Business School, 2008.