APA

US7659227.pdf. https://curate.nd.edu/show/2v23vt16x5p

MLA

“US7659227.pdf.” <https://curate.nd.edu/show/2v23vt16x5p>

Chicago

“US7659227.Pdf,” n.d. https://curate.nd.edu/show/2v23vt16x5p.

Harvard

“US7659227.pdf” (no date). Available at: https://curate.nd.edu/show/2v23vt16x5p.

Vancouver

US7659227.pdf [Internet]. Available from: https://curate.nd.edu/show/2v23vt16x5p