APA

Chu T., Humphries W., . (1972). Investigation of subgrade moisture conditions in connection with the design of flexible pavement structures. Columbia, SC: South Carolina University. College of Engineering.

Chicago

Chu TY, Humphries WK, . 1972. Investigation of subgrade moisture conditions in connection with the design of flexible pavement structures. Columbia, SC: South Carolina University. College of Engineering.

Harvard

Chu T., Humphries W., . (1972). Investigation of subgrade moisture conditions in connection with the design of flexible pavement structures. Columbia, SC: South Carolina University. College of Engineering.

MLA

Chu TY, Humphries WK, . Investigation of subgrade moisture conditions in connection with the design of flexible pavement structures. Columbia, SC: South Carolina University. College of Engineering. 1972.