Παραπομπή APA
Lucas, N. J. D., & David Davies Memorial Institute of International Studies. (1977). Energy and the European Communities. London: Europa for the David Davies Memorial Institute of International Studies.
Παραπομπή Chicago StyleLucas, N. J. D., and David Davies Memorial Institute of International Studies. Energy and the European Communities. London: Europa for the David Davies Memorial Institute of International Studies, 1977.
Παραπομπή MLALucas, N. J. D., and David Davies Memorial Institute of International Studies. Energy and the European Communities. London: Europa for the David Davies Memorial Institute of International Studies, 1977.
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