APA (7th ed.) Citation

Parkin, N., & Flood, C. R. (1969). Welding craft practice, part I. Pergamon.

Chicago Style (17th ed.) Citation

Parkin, N., and C. R. Flood. Welding Craft Practice, Part I. Oxford: Pergamon, 1969.

MLA (9th ed.) Citation

Parkin, N., and C. R. Flood. Welding Craft Practice, Part I. Pergamon, 1969.