APA引文

U.S. department of commerce. (1921). Survey of current business. U.S. department of commerce.

Chicago Edition Citation

U.S. department of commerce. Survey of Current Business. Washington D.C: U.S. department of commerce, 1921.

MLA引文

U.S. department of commerce. Survey of Current Business. U.S. department of commerce, 1921.

警告：這些引文格式不一定是100％准確.