APA (7th ed.) Zitazioa
Yeo, A. (2007). Trig or treat: An encyclopedia of trigonometric identity proofs (TIPs), intellectually challenging games. World Scientific Pub..
Chicago Style (17th ed.) Zitazioa
Yeo, Adrian. Trig or Treat: An Encyclopedia of Trigonometric Identity Proofs (TIPs), Intellectually Challenging Games. Singapore: World Scientific Pub., 2007.
MLA (9th ed.) Zitazioa
Yeo, Adrian. Trig or Treat: An Encyclopedia of Trigonometric Identity Proofs (TIPs), Intellectually Challenging Games. World Scientific Pub., 2007.
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