APA (7th ed.) Citation

DuBay, W. H. (2007). The Classic Readability Studies.

Chicago Style (17th ed.) Citation

DuBay, William H. The Classic Readability Studies. 2007.

MLA (9th ed.) Citation

DuBay, William H. The Classic Readability Studies. 2007.

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