Walstad, W. B. Study guide for use with McConnell and Brue Microeconomics (Seventeenth Edition.).
芝加哥风格引文Walstad, William B. Study Guide for Use with McConnell and Brue Microeconomics. Seventeenth Edition.
MLA引文Walstad, William B. Study Guide for Use with McConnell and Brue Microeconomics. Seventeenth Edition.
警告：这些引文格式不一定是100％准确.