00475nam a2200169 4500 20150519142503.0 000 000 0675054044 UOEL QA141.15 .P72 1980 Practice and activities workbook for mathematics : essentials and applications / Columbia ; Charles E. Merril , c1980. 144 p. : ill. (some col.) ; Essential - applications Mathematics lcc LL 7953 7953 0 0 lcc 0 0 UOE UOE GEN 2015-05-19 0 QA141.15 .P72 1980 10044136 2026-04-27 11:55:35 10044136 2015-05-19 LL