APA (7th ed.) Citation

Cullen, W. C., & Walton, W. W. (1961). The soiling characteristics of structural masonry units: Report. U.S. Dept. of Commerce, National Institute of Standards and Technology.

Chicago Style (17th ed.) Citation

Cullen, William C., and William W. Walton. The Soiling Characteristics of Structural Masonry Units: Report. Gaithersburg, MD: U.S. Dept. of Commerce, National Institute of Standards and Technology, 1961.

MLA (9th ed.) Citation

Cullen, William C., and William W. Walton. The Soiling Characteristics of Structural Masonry Units: Report. U.S. Dept. of Commerce, National Institute of Standards and Technology, 1961.