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Filters: Author is Efrain Torres-Velez [Clear All Filters]

1969

Torres-Velez, Efrain. 1969. “Estudio sobre algunos factores que influyen en la movilidad y retencion de los socios 4-H de Puerto Rico (Study on some factors that influence mobility and retention of Puerto Rican 4-H members)”. Master's thesis, University of Puerto Rico.