00586nam a2200217Ia 4500 CTU_92097 210402s9999 xx 000 0 und d 3.55 382.0941 G795 Greenberg, Machael British trade and the opening of China, 1800-42 Machael Greenberg Cambrige, UK Cambridge University Press 1951 Great Britain Commerce China Hiếu, H.Mai Trung tâm Học liệu Trường Đại học Cần Thơ