40 元券Scientometrics9786139442935PropulsionAerospace¥8920去看看上海外文图书音像专营店发布了按需印刷Trends in Scientometrics of Aerospace Propulsion Systems[9786139442935]25 元券Scientometrics9786139442935PropulsionAerospace¥7600去看看澜瑞图书专营店发布了【4周达】Trends in Scientometrics of Aerospace Propulsion Systems [9786139442935]