Dyfyniad APA

(1989). Chemistry and our changing world. New Jersey: Prentice Hall . 2nd ed.

Dyfyniad Arddull Chicago

Chemistry and Our Changing World. New Jersey: Prentice Hall . 2nd ed, 1989.

Dyfyniad MLA

Chemistry and Our Changing World. New Jersey: Prentice Hall . 2nd ed, 1989.

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