APA (7th ed.) Citation

Bradley, I., & Hallows, N. (1974). Screw threads and twist drills / (by) Ian Bradley and Norman Hallows (4th ed.). Model and Allied Publications.

Chicago Style (17th ed.) Citation

Bradley, Ian, and Norman Hallows. Screw Threads and Twist Drills / (by) Ian Bradley and Norman Hallows. 4th ed. Hemel Hempstead: Model and Allied Publications, 1974.

MLA (9th ed.) Citation

Bradley, Ian, and Norman Hallows. Screw Threads and Twist Drills / (by) Ian Bradley and Norman Hallows. 4th ed. Model and Allied Publications, 1974.

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