00393nam a2200121Ia 4500008004100000020001800041040001500059082002500074100006900099245003000168260006100198300001200259231128s9999    xx            000 0 und d  a971-93048-1-2  aPHSAcPHSA  aFIL 577 L62 1999 c.1  aEsmundo, Rosalinda R. Pagulayan, Roberto C. Payawal, Pacifico C. 0aLife and the planet earth  aQuezon City, PhilippinesbLearning Resource Centerc1999  a211  p.