Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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