"Sociaal-economische verandering." . . "Kgatleng District (Botswana)" . . "Tswana (volk)" . . . . "Social and economic change in a Tswana village"@en . "Social and economic change in a Tswana village" . . . . . . "Case studies"@en . . . . "Case studies" . "Proefschriften (vorm)" . . . . . . . . . "Botswana." . .