(2015). Plunkett Analytics Reports. Security System Monitoring, Sales and Service Industry (US). Plunkett Research, Ltd..
Citação do estilo Chicago (17ª ed.)Plunkett Analytics Reports. Security System Monitoring, Sales and Service Industry (US). [S.l.]: Plunkett Research, Ltd., 2015.
Citação MLA (9ª ed.)Plunkett Analytics Reports. Security System Monitoring, Sales and Service Industry (US). Plunkett Research, Ltd., 2015.
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