Cita APA (7a ed.)

Floud, R. (1973). An introduction to quantitative methods for historians. Methuen.

Cita Chicago Style (17a ed.)

Floud, Roderick. An Introduction to Quantitative Methods for Historians. London: Methuen, 1973.

Cita MLA (9a ed.)

Floud, Roderick. An Introduction to Quantitative Methods for Historians. Methuen, 1973.