APA

European Productivity Agency, . (19561961). Project / European Productivity Agency, EPA, Organisation for European Economic Cooperation. Paris: Organisation.

Chicago

European Productivity Agency, . 19561961. Project / European Productivity Agency, EPA, Organisation for European Economic Cooperation. Paris: Organisation.

Harvard

European Productivity Agency, . (19561961). Project / European Productivity Agency, EPA, Organisation for European Economic Cooperation. Paris: Organisation.

MLA

European Productivity Agency, . Project / European Productivity Agency, EPA, Organisation for European Economic Cooperation. Paris: Organisation. 19561961.