Guide to the selection and testing of gravel for pavement construction / 
National Association of Australian State Road Authorities. 
 - 2nd ed. 
 - Sydney :  The Association,  1974. 
 - vi, 26 p. 
<br/><br/><label>ISBN: </label>0855880589 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Road materials.<br/>Gravel.