Mata Jiménez, L., & Mohs Villalta, E. (1978). As seen from national levels: Developing world.
Dyfyniad Arddull ChicagoMata Jiménez, Leonardo, y Edgar Mohs Villalta. As Seen From National Levels: Developing World. 1978.
Dyfyniad MLAMata Jiménez, Leonardo, y Edgar Mohs Villalta. As Seen From National Levels: Developing World. 1978.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.