Cita APA (7a ed.)

Duckworth, W. E. (1968). Statistical Techniques in Technological Research: An Aid to Research Productivity. Methuen.

Cita Chicago Style (17a ed.)

Duckworth, W. Eric. Statistical Techniques in Technological Research: An Aid to Research Productivity. London: Methuen, 1968.

Cita MLA (9a ed.)

Duckworth, W. Eric. Statistical Techniques in Technological Research: An Aid to Research Productivity. Methuen, 1968.