Project Mercury (U.S.). (1963). America accelerates space programs. NASA.
芝加哥风格引文Project Mercury (U.S.). America Accelerates Space Programs. [Washington, D.C.: NASA, 1963.
MLA引文Project Mercury (U.S.). America Accelerates Space Programs. NASA, 1963.
警告：这些引文格式不一定是100％准确.