Dyfyniad APA

(1998). Primary science: Electricity and magnetism. London: Routledge.

Dyfyniad Arddull Chicago

Primary Science: Electricity and Magnetism. London: Routledge, 1998.

Dyfyniad MLA

Primary Science: Electricity and Magnetism. London: Routledge, 1998.

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