Não informado. (2012). Quarterly Bulletin of Northwestern University Medical School. Northwestern University Medical School.
Citação do estilo Chicago (17ª ed.)Não informado. Quarterly Bulletin of Northwestern University Medical School. Chicago, Ill: Northwestern University Medical School, 2012.
Citação MLA (8ª ed.)Não informado. Quarterly Bulletin of Northwestern University Medical School. Northwestern University Medical School, 2012.
警告：這些引文格式不一定是100％准確.