Gnadig, P. (2001). 200 puzzling physics problems with hints and solutions.
Chicago Edition CitationGnadig, Peter. 200 Puzzling Physics Problems with Hints and Solutions. Cambridge University Press, Cambridge, 2001.
MLA Edition CitationGnadig, Peter. 200 Puzzling Physics Problems with Hints and Solutions. 2001.
Warning: These citations may not always be 100% accurate.