Sheffield, J. R., & Diejomaoh, V. P. (1972). Non-formal education in African development. African-American Institute.
Dyfyniad Arddull ChicagoSheffield, James R., and Victor P. Diejomaoh. Non-formal Education in African Development. New York: African-American Institute, 1972.
Dyfyniad MLASheffield, James R., and Victor P. Diejomaoh. Non-formal Education in African Development. African-American Institute, 1972.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.