Dyfyniad APA

MENCHIRS ROBERT S. (1991). MATURE MARKET: A GOLD MINE OF IDEAS FOR TAPPING THE 50+. PROBUS PUBLICATIONS.

Dyfyniad Arddull Chicago

MENCHIRS ROBERT S. MATURE MARKET: A GOLD MINE OF IDEAS FOR TAPPING THE 50+. CHICAGO: PROBUS PUBLICATIONS, 1991.

Dyfyniad MLA

MENCHIRS ROBERT S. MATURE MARKET: A GOLD MINE OF IDEAS FOR TAPPING THE 50+. PROBUS PUBLICATIONS, 1991.

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