APA (7th ed.) Citation

Dalzell, J. R., & Townsend, G. (1948). Masonry simplified. American Technical Society.

Chicago Style (17th ed.) Citation

Dalzell, J. Ralph, and Gilbert Townsend. Masonry Simplified. Chicago: American Technical Society, 1948.

MLA (9th ed.) Citation

Dalzell, J. Ralph, and Gilbert Townsend. Masonry Simplified. American Technical Society, 1948.