In original English language for the 1st impression.The Net Price to the Publisher is at the ratio 1.6 of the PPB cost.
In original English language for the 1st impression.The Net Price to the Publisher is at the ratio 1.6 of the PPB cost.
原书第一次印刷的文字形式是英文。出版者支付的净价依据PPB成本1.6的比率计算。