Clifford Richardson
- Street Traffic in New York City, 1885 and 1904. Dans: Transactions of the American Society of Civil Engineers, v. 57, n. 2 (décembre 1906). (1906):
- Pavements. Dans: Transactions of the American Society of Civil Engineers, v. 59, n. 2 (décembre 1907). (1907):
- The Use of Bituminous Materials by Mixing Methods. Dans: Transactions of the American Society of Civil Engineers, v. 73, n. 3 (septembre 1911). (1911):
- Road Cons Truction and Maintenance: An Informal Discussion PResented at the Meetings of January 20th and 21 st, 1911. Dans: Transactions of the American Society of Civil Engineers, v. 73, n. 3 (septembre 1911). (1911):