APA引文

Craig, D. F., & Strain, P. M. (1980). Analysis of collection development at the National Library of Medicine.

Citação norma Chicago

Craig, D F., and P M. Strain. Analysis of Collection Development At the National Library of Medicine. 1980.

MLA引文

Craig, D F., and P M. Strain. Analysis of Collection Development At the National Library of Medicine. 1980.

警告：這些引文格式不一定是100％准確.