Covers: Open Library
- Source Book of Electronic CircuitsJohn Markus
- McGraw-Hill Electronics DictionaryJohn Markus
- Guidebook of electronic circuitsJohn Markus
- Electronic circuits manualJohn Markus
- Modern electronic circuits reference manualJohn Markus
- Guía práctica de circuitos electrónicosJohn Markus
- Essential circuits reference guideJohn Markus
- Popular circuits ready-referenceJohn Markus
