APA-referens (7:e uppl.)
Woolfson, M. M. (2011). On the origin of planets: By means of natural simple processes. Imperial College Press.
Chicago-referens (17:e uppl.)
Woolfson, M. M. On the Origin of Planets: By Means of Natural Simple Processes. London: Imperial College Press, 2011.
MLA-referens (9:e uppl.)
Woolfson, M. M. On the Origin of Planets: By Means of Natural Simple Processes. Imperial College Press, 2011.
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