a practical approach Rickwood, D., (David) ed. text programmed text xxk ---- 1984 2 ed. monographic ENG xii, 352 p. : il. ; 23 cm. specialized edited by D. Rickwood CENTRIFUGACION 543.083 C44 090414755X https://www.cicy.mx/sitios/sib/doctoelectronico/244.pdf https://www.cicy.mx/sitios/sib/doctoelectronico/244.pdf 220519 20260521090044.0 000000244