Dyfyniad APA

Ngabe, B., & Poissant, L. Polycyclic aromatic hydrocarbons in the air in the St. Lawrence basin (Quebec).

Dyfyniad Arddull Chicago

Ngabe, Barnabe., và Laurier Poissant. Polycyclic Aromatic Hydrocarbons in the Air in the St. Lawrence Basin (Quebec).

Dyfyniad MLA

Ngabe, Barnabe., và Laurier Poissant. Polycyclic Aromatic Hydrocarbons in the Air in the St. Lawrence Basin (Quebec).

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