APA (7th ed.) Citation

Steinhaus, H. (1963). One hundred problems in elementary mathematics. Pergamon Press.

Chicago Style (17th ed.) Citation

Steinhaus, Hugo. One Hundred Problems in Elementary Mathematics. Oxford: Pergamon Press, 1963.

MLA (9th ed.) Citation

Steinhaus, Hugo. One Hundred Problems in Elementary Mathematics. Pergamon Press, 1963.

Warning: These citations may not always be 100% accurate.