Gnadig, P., Honyek, G. 1., & Riley, K. F. 1. (2001). 200 puzzling physics problems. Cambridge, UK ; New York: Cambridge University Press.
Čikaški stil citiranjaGnadig, Peter., G. 1951- Honyek, i K. F. 1936- Riley. 200 Puzzling Physics Problems. Cambridge, UK ; New York: Cambridge University Press, 2001.
MLA način citiranjaGnadig, Peter., G. 1951- Honyek, i K. F. 1936- Riley. 200 Puzzling Physics Problems. Cambridge, UK ; New York: Cambridge University Press, 2001.
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