APA استشهاد

Nurke,Ragnar. (1961). Patterns of trade and development. Basil black well.

استشهاد بنمط شيكاغو

Nurke,Ragnar. Patterns of Trade and Development. Oxford: Basil black well, 1961.

MLA استشهاد

Nurke,Ragnar. Patterns of Trade and Development. Basil black well, 1961.