That one just doesn't go away....it pops up everywhere. Unfortunately, I don't see where Marvel has a digital version of the comic. I found some info from a quick search that is from Spidey Super Stories #53
The GCD(comics.org) says the artist is Win Mortimer with Mike Esposito inking. Tje cover is credited to Al Milgrom.
I think because it was done as a project for the PBS/Sesame Street show Electric Company that maybe Marvel doesn't have full rights to this.