Dyfyniad APA

Scholastic SuperScience (Teacher's Edition). Scholastic Incorporated.

Dyfyniad Arddull Chicago

Scholastic SuperScience (Teacher's Edition). Scholastic Incorporated.

Dyfyniad MLA

Scholastic SuperScience (Teacher's Edition). Scholastic Incorporated.

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