Perkins,Dwight H. (1969). Agriculture development in China 1368-1968. University Press.
Chicago Style aipamenaPerkins,Dwight H. Agriculture Development in China 1368-1968. Edinburg: University Press, 1969.
MLA aipamenaPerkins,Dwight H. Agriculture Development in China 1368-1968. University Press, 1969.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.