Παραπομπή σε μορφή APA (7η εκδ.)

Wu, C., Zou, Q. M., Guo, H., Yuan, X. P., Zhang, W. J., Lu, D. S., . . . Archives, T. P. S. U. C. characteristics of recombination UreB protein of H. pylori. http://www.wjgnet.com/1007-9327/7/389.pdf.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Wu, Chao, Quan Ming Zou, Hong Guo, Xiao Peng Yuan, Wei Jun Zhang, Dong Shui Lu, Xu Hu Mao, και The Pennsylvania State University CiteSeerX Archives. "Characteristics of Recombination UreB Protein of H. Pylori." Http://www.wjgnet.com/1007-9327/7/389.pdf .

Παραπομπή σε μορφή MLA (9th εκδ.)

Wu, Chao, et al. "Characteristics of Recombination UreB Protein of H. Pylori." Http://www.wjgnet.com/1007-9327/7/389.pdf, .