Cita APA (7a ed.)

Enrick, N. L. (1969). Market and sales forecasting: A quantitative approach. Chandler.

Cita Chicago Style (17a ed.)

Enrick, Norbert Lloyd. Market and Sales Forecasting: A Quantitative Approach. San Francisco, California: Chandler, 1969.

Cita MLA (9a ed.)

Enrick, Norbert Lloyd. Market and Sales Forecasting: A Quantitative Approach. Chandler, 1969.