Cita APA (7a ed.)

Gnadig, P. (2003). 200 Puzzling physics problems. Univ. Pr.

Cita Chicago Style (17a ed.)

Gnadig, Peter. 200 Puzzling Physics Problems. Cambridge: Univ. Pr, 2003.

Cita MLA (9a ed.)

Gnadig, Peter. 200 Puzzling Physics Problems. Univ. Pr, 2003.