Cita APA (7a ed.)

Eastham, J. (1960). Graphical economics. Eng. Univ. Press.

Cita Chicago Style (17a ed.)

Eastham, J. Graphical Economics. London: Eng. Univ. Press, 1960.

Cita MLA (9a ed.)

Eastham, J. Graphical Economics. Eng. Univ. Press, 1960.