Cita APA (7th ed.)

Scripture, N. E., & Fowler, J. (1969). 50 mathematical puzzles and oddities ([1966 ed.].). Faber.

Cita Chicago (17th ed.)

Scripture, Nicholas E., i John Fowler. 50 Mathematical Puzzles and Oddities. [1966 ed.]. London: Faber, 1969.

Cita MLA (8th ed.)

Scripture, Nicholas E., i John Fowler. 50 Mathematical Puzzles and Oddities. [1966 ed.]. Faber, 1969.