000 00284 a2200121 4500
080 _a301.32(063)
_bC 748 P
245 1 _aProceedings
260 _aQuezon City
_bUniversity of the Philippines Press
_c1966
650 _aPopulation
100 _a
_d
300 _a519 pp.
901 _a160265
999 _c59487
_d59487