Serpell, Robert. Linguistic flexibility in urban Zambian schoolchildren / by Robert Serpell. - [Lusaka] : Human Development Research Unit, University of Zambia, 1977. - H.D.R.U. reports ; no. 27 . Catalogued from cover. Bibliography: leaves 23-26. LCCN: 83980500 //r85 Subjects--Topical Terms: Multilingualism -- Zambia -- Lusaka.--Multilingualism -- Zambia -- Lusaka.--Multilingualism -- Zambia -- Lusaka.Code switching (Linguistics) -- Zambia -- Lusaka.--Code switching (Linguistics) -- Zambia -- Lusaka.--Code switching (Linguistics) -- Zambia -- Lusaka. LC Class. No.: P115.5.L8 / S4 1977 Dewey Class. No.: 404/.2/096894