Al Hansen 1927-1995 USA
A Primer of Happenings & Time/Space Art (1965)
Copy from 1st printing, 1072 copies cloth. 145 pp. 20. 8×14.3×1.5cm.. Published by Something Else Press, NY.
Frank, Peter 1983, Something Else Press : an annotated biblioraphy, McPherson & Company, USA.