TY - BOOK T1 - Ideas for teaching science in the junior. LA - English PP - Washingon PB - s.n. YR - 1963 UL - https://tuklas.up.edu.ph/Record/UP-99796217603678838 OP - 257 CN - Q 181 N38 KW - Science : Study and teachiing (Secondary). KW - Science : Experiments. ER -