Just dropping in to say that …
1) this typeface was around at least in 1970, according to the date in this scanned edition.
2) I had a look, and while I found several close ones, I didn’t come across a match. Possibly a custom creation? Drawing such basic geometric letters isn’t that hard, even more so if it’s lowercase only. The lack of optical correction as well as some proportions (too wide r and m, problematic f) suggest an amateur’s attempt.