APA (7th ed.) Citation

Ryan, J. (1999). Identification of preferred collagen orientations for cerebral saccular aneurysms. [publisher not identified].

Chicago Style (17th ed.) Citation

Ryan, John. Identification of Preferred Collagen Orientations for Cerebral Saccular Aneurysms. [Place of publication not identified]: [publisher not identified], 1999.

MLA (9th ed.) Citation

Ryan, John. Identification of Preferred Collagen Orientations for Cerebral Saccular Aneurysms. [publisher not identified], 1999.