TY - BOOK T1 - Arithmetic for Schools A1 - Lock, J. B. (John Bascombe) LA - English PP - London PB - Macmillan and co. YR - 1982 UL - http://vufind10-pruebas.sigbunlp.bibliotecas.unlp.edu.ar/Record/dfi.30089 OP - 330 KW - ARITMETICA ER -