APA Citation

Pieper, M. H., & Pieper. (2003). Addicted to unhappiness. USA: Mc Graw-Hill.

Chicago Style Citation

Pieper, Martha Heineman, and Pieper. Addicted to Unhappiness. USA: Mc Graw-Hill, 2003.

MLA Citation

Pieper, Martha Heineman, and Pieper. Addicted to Unhappiness. USA: Mc Graw-Hill, 2003.

Warning: These citations may not always be 100% accurate.