APA引文

Christensen, H. B. (1977). Statistics step by step. Houghton.

Chicago Edition Citation

Christensen, Howard B. Statistics Step by Step. Atlanta: Houghton, 1977.

MLA引文

Christensen, Howard B. Statistics Step by Step. Houghton, 1977.

警告：這些引文格式不一定是100％准確.