APA引文

Copulsky, W. (1970). Practice sales forecasting. s.n.,].

Chicago Style (17th ed.) Citation

Copulsky, Willliam. Practice Sales Forecasting. s.n.,], 1970.

MLA引文

Copulsky, Willliam. Practice Sales Forecasting. s.n.,], 1970.

警告：這些引文格式不一定是100％准確.