Gnadig, P., Honyek, G. 1., & Riley, K. F. 1. (2001). 200 puzzling physics problems. Cambridge, UK ; New York: Cambridge University Press.
Dyfyniad Arddull ChicagoGnadig, Peter., G. 1951- Honyek, và K. F. 1936- Riley. 200 Puzzling Physics Problems. Cambridge, UK ; New York: Cambridge University Press, 2001.
Dyfyniad MLAGnadig, Peter., G. 1951- Honyek, và K. F. 1936- Riley. 200 Puzzling Physics Problems. Cambridge, UK ; New York: Cambridge University Press, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.