APA (7th ed.) Citation

Battenberg, R. W., & Townsend, G. (1947). Study guide for steel square. American Technical Society.

Chicago Style (17th ed.) Citation

Battenberg, Rex W., and G. Townsend. Study Guide for Steel Square. [s.l.]: American Technical Society, 1947.

MLA (9th ed.) Citation

Battenberg, Rex W., and G. Townsend. Study Guide for Steel Square. American Technical Society, 1947.