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020 _a9716857986 (v.3)
040 _aDEDUC
_erda
_cdeduc
041 0 _aeng
042 _aDMLUC
050 0 0 _aLB 2157 P5
_bF53 2015
245 0 0 _aField study.
300 _a6 volumes :
_billustrations ;
_c27 cm
650 0 _aStudent teaching
_zPhilippines
_vHandbooks, manuals, etc.
942 _2ddc
_cF
999 _c12471
_d12471