Johnson-Freese, J. (2009). Heavenly ambitions: America's quest to dominate space. University of Pennsylvania Press.
芝加哥风格引文Johnson-Freese, Joan. Heavenly Ambitions: America's Quest to Dominate Space. Philadelphia: University of Pennsylvania Press, 2009.
MLA引文Johnson-Freese, Joan. Heavenly Ambitions: America's Quest to Dominate Space. University of Pennsylvania Press, 2009.
警告：这些引文格式不一定是100％准确.