McNamara, R. S. (1973). One hundred countries, two billion people. New York: Praeger Publishers.
Dyfyniad Arddull ChicagoMcNamara, Robert S. One Hundred Countries, Two Billion People. New York: Praeger Publishers, 1973.
Dyfyniad MLAMcNamara, Robert S. One Hundred Countries, Two Billion People. New York: Praeger Publishers, 1973.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.