Gaya APA

Li, L, M, &, D, A. (1999). Guarding Beijing's food security Qing Dynasty: State, marketand police. . : .

Gaya MLA

Li, Lilian, M., &, Dray-Novey,, Alison. "Guarding Beijing's food security Qing Dynasty: State, marketand police. ". : , 1999. Majalah.