Cita APA (7a ed.)

Imhoff, E. A. (1986). Sales forecasting systems. [s.n].

Cita Chicago Style (17a ed.)

Imhoff, Eugene A. Sales Forecasting Systems. National ASSociation of AccountantS New JerSey: [s.n], 1986.

Cita MLA (9a ed.)

Imhoff, Eugene A. Sales Forecasting Systems. [s.n], 1986.