Grier, W. P. (1865). Printed Special Orders No. 33, To: Medical Cadet Robert O'Reilly From: William P. Grier, Assistant Surgeon & Medical Director, February 18, 1865.
Chicago-viite (17. p.)Grier, William P. Printed Special Orders No. 33, To: Medical Cadet Robert O'Reilly From: William P. Grier, Assistant Surgeon & Medical Director, February 18, 1865. 1865.
MLA-viite (8. p.)Grier, William P. Printed Special Orders No. 33, To: Medical Cadet Robert O'Reilly From: William P. Grier, Assistant Surgeon & Medical Director, February 18, 1865. 1865.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.