Cita APA (7th ed.)

Association of Teachers of Mathematics & Fletcher, T. J. e. (1964). Some lessons in mathematics. University Press.

Cita Chicago (17th ed.)

Association of Teachers of Mathematics i Trevor James ed Fletcher. Some Lessons in Mathematics. Cambridge: University Press, 1964.

Cita MLA (9th ed.)

Association of Teachers of Mathematics i Trevor James ed Fletcher. Some Lessons in Mathematics. University Press, 1964.