Citação norma APA

Himstreet, W. C., & Baty, W. M. (1976). Programmed learning aid for business communications. Learning Systems Co.

Citação norma Chicago

Himstreet, William C., and Wayne Murlin Baty. Programmed Learning Aid for Business Communications. Homewood, Ill: Learning Systems Co, 1976.

Citação norma MLA

Himstreet, William C., and Wayne Murlin Baty. Programmed Learning Aid for Business Communications. Learning Systems Co, 1976.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.