APA (7th ed.) Citation

Floud, R. (1979). An introduction to quantitative methods for historians: Roderick Floud ((2nd ed.).). Methuen.

Chicago Style (17th ed.) Citation

Floud, Roderick. An Introduction to Quantitative Methods for Historians: Roderick Floud. (2nd ed.). (London): Methuen, 1979.

MLA (8th ed.) Citation

Floud, Roderick. An Introduction to Quantitative Methods for Historians: Roderick Floud. (2nd ed.). Methuen, 1979.