HALLBERG,KRISTIN. (2006). IMPROVING INVESTMENT CLIMATES: AN EVALUATION OF WORLD BANK GROUP ASSISTANCE. WORLD BANK.
芝加哥风格引文HALLBERG,KRISTIN. IMPROVING INVESTMENT CLIMATES: AN EVALUATION OF WORLD BANK GROUP ASSISTANCE. WASHINGTON: WORLD BANK, 2006.
MLA引文HALLBERG,KRISTIN. IMPROVING INVESTMENT CLIMATES: AN EVALUATION OF WORLD BANK GROUP ASSISTANCE. WORLD BANK, 2006.
警告：这些引文格式不一定是100％准确.