Dyfyniad APA

Kathleen Weidner Zoehfeld. (2010). Where Did Dinosaurs Come From? (Let's-Read-and-Find-Out Science 2). HarperCollins.

Dyfyniad Arddull Chicago

Kathleen Weidner Zoehfeld. Where Did Dinosaurs Come From? (Let's-Read-and-Find-Out Science 2). HarperCollins, 2010.

Dyfyniad MLA

Kathleen Weidner Zoehfeld. Where Did Dinosaurs Come From? (Let's-Read-and-Find-Out Science 2). HarperCollins, 2010.

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