London, G. W. (1981). Fourth International colloquium on Photon-Photon interactions 1981. World Scientific Publishing Company.
استشهاد بنمط شيكاغوLondon, Georges W.[ed.]. Fourth International Colloquium on Photon-Photon Interactions 1981. Singapore: World Scientific Publishing Company, 1981.
MLA استشهادLondon, Georges W.[ed.]. Fourth International Colloquium on Photon-Photon Interactions 1981. World Scientific Publishing Company, 1981.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.