- Author: Helmut Steinberger, Eckart Klein, Daniel Thürer, Meinhard Schröder, Hans D. Jarass
- Language: German
- Year: 1991
- Author: William W. Klein, Daniel J. Steiner
- Language: English
- Year: 2022
- Author: Klein Daniel M
- Language: English
- Year: 2015
- Author: Epicurus Epicurus., Klein Daniel M., Klein Daniel M
- Language: English
- Year: 2012
The art of happiness
epub
- Author: Epicurus, Klein Daniel, Strodach George K
- Language: English
- Year: 2012
- Author: George Klein Daniel DiMaio (auth.) Robert L. Garcea Daniel DiMaio (eds.)
- Language: English
- Year: 2007