APA (7th ed.) Citation

Shupe, J. W., & Goetz, W. H. (1959). A laboratory investigation of pavement slipperiness. Purdue University.

Chicago Style (17th ed.) Citation

Shupe, J. W., and W. H. Goetz. A Laboratory Investigation of Pavement Slipperiness. Lafayette: Purdue University, 1959.

MLA (9th ed.) Citation

Shupe, J. W., and W. H. Goetz. A Laboratory Investigation of Pavement Slipperiness. Purdue University, 1959.