TY - BOOK T1 - Environmental science a study of interrelationships A1 - Enger, Eldon D. A2 - Smith, Bradley Fraser PP - Boston, Mass. PB - WCB/McGraw Hill YR - 1998 ED - 6th ed. UL - https://ds.mainlib.upd.edu.ph/Record/UP-99796217608468385 OP - 456 CN - GE 105 E54 1998 SN - 069728655X (case) SN - 0697286568 (pbk.) KW - Environmental sciences. ER -