所有的资料，只要标签是 'social conditions'

著者： Dierdre LaPin; Francis Speed; University of California (System). Extension Media Center.;

著者： C M Hann

著者： Television Trust for the Environment.; Bullfrog Films.;

著者： Amanda Feldon;

著者： Paul Hamann; British Broadcasting Corporation. Television Service.;

著者： Jeremy Rocklin; Abdel Kader Ouedraogo; Blue Saxophone Films.; Documentary Educational Resources (Firm);

著者： Ali AlʼAmin Mazrui; WETA-TV (Television station : Washington, D.C.); British Broadcasting Corporation. Television Service.; Annenberg/CPB Project.;

著者： David Goldblatt; Bernard Joffa Productions.; Channel Four (Great Britain); Wombat Film & Video.

著者： Michel Portal; Souleymane Cissé; Cissé Films.; California Newsreel (Firm); Cinecom Pictures Video.;

著者： Gaston Kaboré;