base materials

WA-RD 015.3
Authors: 
Milan Krukar, John C. Cook.
Originator: 
Washington State University. Highway Research Section.
Publication Date: 
Tuesday, July 1, 1969
WA-RD 252.3
Authors: 
David L. Swearingen, Newton C. Jackson, Keith W. Anderson.
Originator: 
Washington (State). Dept. of Transportation.
Publication Date: 
Saturday, February 1, 1992
WA-RD 252.2
Authors: 
David L. Swearingen, Newton C. Jackson, Keith W. Anderson.
Originator: 
Washington (State). Dept. of Transportation.
Publication Date: 
Saturday, February 1, 1992
WA-RD 252.1
Authors: 
David L. Swearingen, Newton C. Jackson, Keith W. Anderson.
Originator: 
Washington (State). Dept. of Transportation.
Publication Date: 
Saturday, February 1, 1992