1K ZX81 Frogger AuthorsG. WilsonPublicationThe Data ExpansionPub DetailsThe D/FW Data Expansion v4 n12Volume: 4 Issue: 12DateDecember 1987Pages17-18Read the articleSee all articles from The D/FW Data Expansion v4 n12 TagsThe Data Expansion TS 1000 Type-in program PeopleG. Wilson