Road Research Laboratory.
Alfred Holl
Richard W. Smith
L. S. Hitch
J. Carswell
Unknown Author
National Association of Australian State Road Authorities.
M. E. Nunn
T. M. Jermyn
J. E. Patrick
A. Nikolaides
National Research Council (U.S.). Highway Research Board. Dept. of Materials and Construction. Bituminous Division.
National Research Council (U.S.). Highway Research Board. Department of Materials and Construction. Bituminous Division
John M. Vyce
M. E. Daines
G. W. Maupin
Barry L. Elkin