TY - BOOK AU - Rogers,Hal TI - Graders SN - 1567666531 (lib. bdg. : alk. paper) U1 - 624.1 PY - 1999/// CY - Eden Prairie, Minn. PB - Child's World KW - Graders (Earthmoving machinery) N2 - Describes the parts of a grader, how it works, and the work it does at a construction site ER -