Milwaukee: University of Wisconsin. Spanish Speaking Outreach Institute, 1980. Paperback. iv, 28p sheets printed one side, 8.5x11 inches, 'limited first edition stated' (see comments below), texts in Spanish and English, very good in trade paper pictorial mustard wraps.
A 1978 edition evidently appeared as well, rendering this issue a second or later (thanks to P. Scott Brown and Bill Fisher for the information).