Emmanuel,Arghiri. (1982). Appropriate or underdeveloped technology ? John Wiley & Sons.
Dyfyniad Arddull ChicagoEmmanuel,Arghiri. Appropriate or Underdeveloped Technology ? New York: John Wiley & Sons, 1982.
Dyfyniad MLAEmmanuel,Arghiri. Appropriate or Underdeveloped Technology ? John Wiley & Sons, 1982.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.