APA引文

LOVEWELL,Mark. (2007). Understanding Economics: A contemporary perswpective (4th ed.). MacGraw Hill.

芝加哥风格引文

LOVEWELL,Mark. Understanding Economics: A Contemporary Perswpective. 4th ed. Canada: MacGraw Hill, 2007.

MLA引文

LOVEWELL,Mark. Understanding Economics: A Contemporary Perswpective. 4th ed. MacGraw Hill, 2007.

警告：这些引文格式不一定是100％准确.