Popular Electronics – Electronic-Experimenters-Handbook-1972-Winter
Angličtina 148 8Popular Electronics – Electronic-Experimenters-Handbook-1971-Winter
Angličtina 148 8Popular Electronics – Electronic-Experimenters-Handbook-1966-Fall
Angličtina 148 7Popular Electronics – Electronic-Experimenters-Handbook-1967-Spring
Angličtina 148 6