APA引文

Spurr, W. (1954). Business and economic statistics. Richard D Irvin.

Chicago Edition Citation

Spurr, W.A. Business and Economic Statistics. Richard D Irvin, 1954.

MLA引文

Spurr, W.A. Business and Economic Statistics. Richard D Irvin, 1954.

警告：這些引文格式不一定是100％准確.