孙铨. (2009). 向航天员学习: Learn from astronauts. 中国工人出版社.
Dyfyniad Arddull Chicago孙铨. 向航天员学习: Learn from Astronauts. 中国工人出版社, 2009.
Dyfyniad MLA孙铨. 向航天员学习: Learn from Astronauts. 中国工人出版社, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.