APA (7th ed.) Citation

Penfold, R. A. (1980). Electronics-build and learn. Butterworth.

Chicago Style (17th ed.) Citation

Penfold, R. A. Electronics-build and Learn. London: Butterworth, 1980.

MLA (9th ed.) Citation

Penfold, R. A. Electronics-build and Learn. Butterworth, 1980.

Warning: These citations may not always be 100% accurate.