APA-čujuhus (7. p.)
Provine, R. R. (2012). Curious behavior: Yawning, laughing, hiccupping, and beyond. Belknap Press of Harvard University Press.
Chicago-čujuhus (17. p.)
Provine, Robert R. Curious Behavior: Yawning, Laughing, Hiccupping, and Beyond. Cambridge, MA: Belknap Press of Harvard University Press, 2012.
MLA-čujuhus (9. p.)
Provine, Robert R. Curious Behavior: Yawning, Laughing, Hiccupping, and Beyond. Belknap Press of Harvard University Press, 2012.
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