Citazione Stile APA (7a Edizione)

Ramsey, A. S. (1932). Elementary co-ordinate geometry: A book for beginners. Cambridge University Press.

Citazione stile Chigago Style (17a edizione)

Ramsey, A. S. Elementary Co-ordinate Geometry: A Book for Beginners. Cambridge: Cambridge University Press, 1932.

Citatione MLA (8a ed.)

Ramsey, A. S. Elementary Co-ordinate Geometry: A Book for Beginners. Cambridge University Press, 1932.