Popular Electronics – Electronic-Experimenters-Handbook-1969-Winter
Angielski 142 15Popular Electronics – Electronic-Experimenters-Handbook-1970-Spring
Angielski 152 9Popular Electronics – Electronic-Experimenters-Handbook-1973-Fall
Angielski 150 18Popular Electronics – Electronic-Experimenters-Handbook-1970-Winter
Angielski 152 12