APA (7th ed.) Citation

Harel, A. (1958). Transistorised private automatic telephone system.

Chicago Style (17th ed.) Citation

Harel, Abraham. Transistorised Private Automatic Telephone System. 1958.

MLA (9th ed.) Citation

Harel, Abraham. Transistorised Private Automatic Telephone System. 1958.

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