Gaya APA

HARTLAND, PENELOPE. (1980). TRADING BLOCS, U.S. EXPORT AND WORLD TRADE . USA: WESTVIEW PRESS.

Gaya Chicago

HARTLAND, PENELOPE. TRADING BLOCS, U.S. EXPORT AND WORLD TRADE. USA: WESTVIEW PRESS, 1980. Text.

Gaya MLA

HARTLAND, PENELOPE. TRADING BLOCS, U.S. EXPORT AND WORLD TRADE. USA: WESTVIEW PRESS, 1980. Text.

Gaya Turabian

HARTLAND, PENELOPE. TRADING BLOCS, U.S. EXPORT AND WORLD TRADE. USA: WESTVIEW PRESS, 1980. Print.