BPP PROFESSIONAL EDUCATION. (2006). VEE-ECONOMICS PAST EXAM PACK: SPRING 2006. BPP PROFESSIONAL EDUCATION.
芝加哥风格引文BPP PROFESSIONAL EDUCATION. VEE-ECONOMICS PAST EXAM PACK: SPRING 2006. WEATOGUE CT: BPP PROFESSIONAL EDUCATION, 2006.
MLA引文BPP PROFESSIONAL EDUCATION. VEE-ECONOMICS PAST EXAM PACK: SPRING 2006. BPP PROFESSIONAL EDUCATION, 2006.
警告：这些引文格式不一定是100％准确.