Dyfyniad APA

Mattessich, R. (1978). Instrumental reasoning and systems methodology. Theory and decision library 15.

Dyfyniad Arddull Chicago

Mattessich, Richard. "Instrumental Reasoning and Systems Methodology." Theory and Decision Library 15 1978.

Dyfyniad MLA

Mattessich, Richard. "Instrumental Reasoning and Systems Methodology." Theory and Decision Library 15 1978.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.