Christie, A. B. (1969). Pestilence in the Fourteenth Century.
Citação norma ChicagoChristie, A. B. Pestilence in the Fourteenth Century. 1969.
MLA引文Christie, A. B. Pestilence in the Fourteenth Century. 1969.
警告：這些引文格式不一定是100％准確.
APA引文