Cita APA (7th ed.)
Grotelueschen, M. E. (2001). Doctrine under trial: American artillery employment in World War I. Greenwood Press.
Cita Chicago (17th ed.)
Grotelueschen, Mark E. Doctrine Under Trial: American Artillery Employment in World War I. Westport, Conn.: Greenwood Press, 2001.
Cita MLA (9th ed.)
Grotelueschen, Mark E. Doctrine Under Trial: American Artillery Employment in World War I. Greenwood Press, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.