Westebbe, R. M. (1968). Mauritania: Guidelines for a four-year development program. Washington, D.C: International Bank for Reconstruction and Development.
Παραπομπή Chicago StyleWestebbe, Richard M. Mauritania: Guidelines for a Four-year Development Program. Washington, D.C: International Bank for Reconstruction and Development, 1968.
Παραπομπή MLAWestebbe, Richard M. Mauritania: Guidelines for a Four-year Development Program. Washington, D.C: International Bank for Reconstruction and Development, 1968.
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