APA Style

0E4, O, O, E, E, N, R, C, 5, B, S, 1, F, O, O, K. (). Energy Efficiency Trends in Canada 1990 to 2009 . : .

MLA Style

0E4, Office, Of, Energy, Efficiency, Natural, Resources, Canada, 580, Booth, Street,, 18th, Floor, Ottawa, ON, K1A. "Energy Efficiency Trends in Canada 1990 to 2009". : , . Information Technology.