APA-viite

Davis, E. J. (1988). Practical sales forecasting. Mc Graw - Hill.

Chicago-tyylinen lähdeviittaus

Davis, E. J. Practical Sales Forecasting. London: Mc Graw - Hill, 1988.

MLA-viite

Davis, E. J. Practical Sales Forecasting. Mc Graw - Hill, 1988.