Dyfyniad APA

Kerrod, R. (1997). Macmillan Encyclopedia of Science 12: Tools and Tomorrow. Macmillan Reference.

Dyfyniad Arddull Chicago

Kerrod, Robin. Macmillan Encyclopedia of Science 12: Tools and Tomorrow. Macmillan Reference, 1997.

Dyfyniad MLA

Kerrod, Robin. Macmillan Encyclopedia of Science 12: Tools and Tomorrow. Macmillan Reference, 1997.

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