Dyfyniad APA

(2009). Sustainability. Basel, Switzerland: Molecular Diversity Preservation International.

Dyfyniad Arddull Chicago

Sustainability. Basel, Switzerland: Molecular Diversity Preservation International, 2009.

Dyfyniad MLA

Sustainability. Basel, Switzerland: Molecular Diversity Preservation International, 2009.

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