Dyfyniad APA

Lafferty, P. (1998). Macmillan Revised ENCYCLOPEDIA of SCIENCE matter and Energy 1. Macmillan Reference.

Dyfyniad Arddull Chicago

Lafferty, Peter. Macmillan Revised ENCYCLOPEDIA of SCIENCE Matter and Energy 1. Macmillan Reference, 1998.

Dyfyniad MLA

Lafferty, Peter. Macmillan Revised ENCYCLOPEDIA of SCIENCE Matter and Energy 1. Macmillan Reference, 1998.

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