周哲 & 陈盛. (2012). 力和引力: Force and gravity. 人民武警出版社.
Chicago Style (17th ed.) Citation周哲 and 陈盛. 力和引力: Force and Gravity. 人民武警出版社, 2012.
MLA (8th ed.) Citation周哲 and 陈盛. 力和引力: Force and Gravity. 人民武警出版社, 2012.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.