Dyfyniad APA

London, G. W. (1981). Fourth International colloquium on Photon-Photon interactions 1981. World Scientific Publishing Company.

Dyfyniad Arddull Chicago

London, Georges W.[ed.]. Fourth International Colloquium on Photon-Photon Interactions 1981. Singapore: World Scientific Publishing Company, 1981.

Dyfyniad MLA

London, Georges W.[ed.]. Fourth International Colloquium on Photon-Photon Interactions 1981. World Scientific Publishing Company, 1981.

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