Kemp, M. C. (1971). Pure theory of international trade and investment. Prentice Hall.
Dyfyniad Arddull ChicagoKemp, Murray C. Pure Theory of International Trade and Investment. Delhi: Prentice Hall, 1971.
Dyfyniad MLAKemp, Murray C. Pure Theory of International Trade and Investment. Prentice Hall, 1971.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.