Dyfyniad APA

Corporation, I. L. S. Science. The New Universal Library.

Dyfyniad Arddull Chicago

Corporation, International Learning Systems. Science. London: The New Universal Library.

Dyfyniad MLA

Corporation, International Learning Systems. Science. The New Universal Library.

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