APA (7th ed.) Citation

Butt, R. A., & unknown. (1994). Design of composite die for wire drawing.

Chicago Style (17th ed.) Citation

Butt, Rasheed Ahmed, and unknown. Design of Composite Die for Wire Drawing. 1994.

MLA (9th ed.) Citation

Butt, Rasheed Ahmed, and unknown. Design of Composite Die for Wire Drawing. 1994.

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