
[Who's Who in Contemporary Gay & Lesbian History: From World War II to the Present Day, ISBN 041522974X, 2001, Aldrich, Robert and Wotherspoon, Gary (eds)]
Steps to an Ecology of Mind (1972)
[Who's Who in Contemporary Gay & Lesbian History: From World War II to the Present Day, ISBN 041522974X, 2001, Aldrich, Robert and Wotherspoon, Gary (eds)]
Source: Messages from the Masters: Tapping into the Power of Love
Source: Systems Thinking, Systems Practice, 1981, p. 51 cited in: Rosário Macário (2011) Managing Urban Mobility Systems. p. 52
1970s, How do we tell truths that might hurt? (1975)
Comedy album A Wild and Crazy Guy