BEIN 2020 S175: Imperfect, covers wanting: 1978:Apr.
BEIN 2020 S175: Imperfect, pages 39-42 wanting: 1979:Sept.
BEIN 2020 S175: Imperfect, pages 31-55 wanting: 1981:June.
BEIN 2020 S175: From the Library of Samuel R. Delany: 1995:July; 1997:Nov.; 1998:Apr.; 1999:Jan.; 1999:Mar.; 1999:Sept.; 2000:Jan.-Feb.; 2000:May-July; 2001:Mar.-May; 2001:Aug.; 2001:Oct.; 2002:Mar.; 2002:July.
BEIN 2020 S175: From the Library of Donald Whittaker: 1978:Sept.
BEIN 2020 S175: From the Vale Zines Collection: 1981:Aug.