London, G. W. (1981). Fourth International colloquium on Photon-Photon interactions 1981. World Scientific Publishing Company.
Chicago Stili AlıntıLondon, Georges W.[ed.]. Fourth International Colloquium on Photon-Photon Interactions 1981. Singapore: World Scientific Publishing Company, 1981.
MLA AlıntıLondon, Georges W.[ed.]. Fourth International Colloquium on Photon-Photon Interactions 1981. World Scientific Publishing Company, 1981.
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