APA (7th ed.) Citation

Negretti & Zambra Ltd. (1924). Industrial instruments. Negretti & Zambra Ltd..

Chicago Style (17th ed.) Citation

Negretti & Zambra Ltd. Industrial Instruments. London: Negretti & Zambra Ltd., 1924.

MLA (8th ed.) Citation

Negretti & Zambra Ltd. Industrial Instruments. Negretti & Zambra Ltd., 1924.