APA (7th ed.) Zitazioa

Steinhaus, H. (1979). One hundred problems in elementary mathematics. Dover.

Chicago Style (17th ed.) Zitazioa

Steinhaus, Hugo. One Hundred Problems in Elementary Mathematics. Nueva York: Dover, 1979.

MLA (9th ed.) Zitazioa

Steinhaus, Hugo. One Hundred Problems in Elementary Mathematics. Dover, 1979.