APA引文

Williams, S. G., & Kauffman, C. A. (1978). Survival of Streptococcus pneumoniae in sputum from patients with pneumonia.

Citação norma Chicago

Williams, S G., and C A. Kauffman. Survival of Streptococcus Pneumoniae in Sputum From Patients With Pneumonia. 1978.

MLA引文

Williams, S G., and C A. Kauffman. Survival of Streptococcus Pneumoniae in Sputum From Patients With Pneumonia. 1978.

警告：這些引文格式不一定是100％准確.