- The Greens by Bob Brown, Peter Singer, 1996
- Democracy & Disobedience by Peter Singer, 1992-03
- How Ethical Is Australia? An Examination of Australia's Record as a Global Citizen by Peter and Gregg, Tom Singer, 2004
- Landscapes of Ireland: A Countryside Guide (Sunflower Countryside Guides) by Peter Singer, 1998-01
- Ireland (Sunflower Guides Ireland) by Peter Singer, 2004-03-01
- PRACTICAL ETHICS: Second Edition by Peter Singer, 2006
- Leben und Tod by Peter Singer, 1998-01-01
- The Bioethics Reader: Editors' Choice
- Ireland: Car Tours and Walks (Landscapes) by Peter Singer, 2010-08-15
- Ariel and Caliban: Selected poems by Peter Singer, 1980
- The Travel Diaries of Peter Pears, 1936-1978 by Peter Pears, Peter Reed, et all 1999-05-01
- Wie sollen wir leben? Ethik in einer egoistischen Zeit. by Peter Singer, 2002-03-01
- Peter Allen: "Between the Moon and New York City" by David Smith, Neal Peters, 1984-02
- Ética práctica by Peter Singer, 1995-09-29
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