APA (7th ed.) Citation

Packard, V. O. (1989). The ultra rich: How much is too much? Little, Brown.

Chicago Style (17th ed.) Citation

Packard, Vance Oakley. The Ultra Rich: How Much Is Too Much? Boston: Little, Brown, 1989.

MLA (9th ed.) Citation

Packard, Vance Oakley. The Ultra Rich: How Much Is Too Much? Little, Brown, 1989.