40 元券9780367759025OptimizationMathematicalEconomists¥5390去看看中国国际图书专营店发布了[预订]Mathematical Analysis and Optimization for Economists 978036775902525 元券9780367759025OptimizationMathematicalEconomists¥5830去看看澜瑞图书专营店发布了【4周达】Mathematical Analysis and Optimization for Economists [9780367759025]