Dyfyniad APA

Bowood, R. (1961). Great Inventions. Ladybird Books.

Dyfyniad Arddull Chicago

Bowood, Richard. Great Inventions. Loughborough: Ladybird Books, 1961.

Dyfyniad MLA

Bowood, Richard. Great Inventions. Ladybird Books, 1961.

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