APA-viite (7. p.)

Foster, W. When you've made enough to make a difference: A strategy for becoming an effective philanthopist. Harvard Business Review.

Chicago-viite (17. p.)

Foster, William. "When You've Made Enough to Make a Difference: A Strategy for Becoming an Effective Philanthopist." Harvard Business Review .

MLA-viite (9. p.)

Foster, William. "When You've Made Enough to Make a Difference: A Strategy for Becoming an Effective Philanthopist." Harvard Business Review, .