00482nas a2200109 4500008004100000245008200041210006900123260002200192653001900214100001800233856012100251 2000 eng d00aDevelopment and Comparison of PS 42-70 Complex and Simplified Grading Systems0 aDevelopment and Comparison of PS 4270 Complex and Simplified Gra aClemson, SCc200010aDesign Program1 aMullet, Kathy u/biblio/development-and-comparison-ps-42-70-complex-and-simplified-grading-systems-0