Lua APA (7ú heag.)
ebrary, Inc, & Earman, J. (1983). Testing scientific theories. University of Minnesota Press.
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, agus John Earman. Testing Scientific Theories. Minneapolis: University of Minnesota Press, 1983.
Lua MLA (9ú heag.)
ebrary, Inc, agus John Earman. Testing Scientific Theories. University of Minnesota Press, 1983.
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