APA (7th ed.) Citation

Hassan, N. H. (1985). A voice operated relay / Nor Hasnah Hassan.

Chicago Style (17th ed.) Citation

Hassan, Nor Hasnah. A Voice Operated Relay / Nor Hasnah Hassan. 1985.

MLA (9th ed.) Citation

Hassan, Nor Hasnah. A Voice Operated Relay / Nor Hasnah Hassan. 1985.

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