Dyfyniad APA

STEVENS MICHAEL. (1990). PRACTICAL PROBLEM SOLVING FOR MANAGERS. UNIVERSAL BOOKS.

Dyfyniad Arddull Chicago

STEVENS MICHAEL. PRACTICAL PROBLEM SOLVING FOR MANAGERS. NEW DELHI: UNIVERSAL BOOKS, 1990.

Dyfyniad MLA

STEVENS MICHAEL. PRACTICAL PROBLEM SOLVING FOR MANAGERS. UNIVERSAL BOOKS, 1990.

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