Pori’r Slipiau

ABCChDDdEFFfGNgHIJLLlMNOPPhRRhSTThUWY

Trawsgrifiad y Slip

< I'r Slip BlaenorolI'r Slip Nesaf >3c-010634

cost

cost(-au) anuniongyrchol (eb) – indirect cost

Termau Cyfrifeg (1992) 7

1992