by the Central Intelligence Agency, The World Factbook (1982) — Sierra Leone (1982 |noyear)
“ English official, but regular use limited to literate minority; principal vernaculars are Mende in south and Temne in north; "Krio," the language of the resettled ex-slave population of the Freetown area, is used as a lingua franca Literacy: about 10% Labor force: about 1.5 million; most of population engages in subsistence agriculture ”
