APA

Pugh C., . (1980). Bicycle-safe grate inlets study. Vol 5. Denver, CO: U.S. Department of the Interior. Water and Power Resources Service. Engineering and Research Center.

Chicago

Pugh CA, . 1980. Bicycle-safe grate inlets study. Vol 5. Denver, CO: U.S. Department of the Interior. Water and Power Resources Service. Engineering and Research Center.

Harvard

Pugh C., . (1980). Bicycle-safe grate inlets study. Vol 5. Denver, CO: U.S. Department of the Interior. Water and Power Resources Service. Engineering and Research Center.

MLA

Pugh CA, . Bicycle-safe grate inlets study. Vol 5. Denver, CO: U.S. Department of the Interior. Water and Power Resources Service. Engineering and Research Center. 1980.