Gaya APA

Swanson, C, P., H., I, H, R. (1973). Programmed learning aid for production and operations management . Amerika: Amerika: Learning Systems Company; 1973.

Gaya MLA

Swanson, Carl, P.., H., I., Hermanson,, Roger. "Programmed learning aid for production and operations management". Amerika: Amerika: Learning Systems Company; 1973, 1973. Text.