- Author: G.I. Gurdjieff, Robin Bloor
- Language: English
- Year: 2015
- Author: Judith Hurwitz, Robin Bloor, Carol Baroudi, Marcia Kaufman, et al
- Language: English
- Year: 2007
- Author: Judith Hurwitz, Robin Bloor, Carol Baroudi, Marcia Kaufman, et al
- Language: English
- Year: 2007
- Author: Judith Hurwitz Robin Bloor Marcia Kaufman Fern Halper
- Language: English
- Year: 2009
- Author: Judith Hurwitz Robin Bloor Marcia Kaufman Fern Halper
- Language: English
- Year: 2009
- Author: Judith Hurwitz Robin Bloor Marcia Kaufman Fern Halper
- Language: English
- Year: 2009
- Author: Judith Hurwitz Robin Bloor Carol Baroudi Marcia Kaufman
- Language: English
- Year: 2006
- Author: Judith Hurwitz Robin Bloor Marcia Kaufman Fern Halper
- Language: English
- Year: 2010
- Author: Judith Hurwitz Robin Bloor Carol Baroudi Marcia Kaufman
- Language: English
- Year: 2006
- Author: Judith Hurwitz Robin Bloor Carol Baroudi Marcia Kaufman
- Language: English
- Year: 2006