APA

Riker D. A., United States, . (2012). Energy costs and export performance. [Washington, D.C.]: International Trade Administration, Office of Competition and Economic Analysis.

Chicago

Riker David A, United States, . 2012. Energy costs and export performance. [Washington, D.C.]: International Trade Administration, Office of Competition and Economic Analysis.

Harvard

Riker D. A., United States, . (2012). Energy costs and export performance. [Washington, D.C.]: International Trade Administration, Office of Competition and Economic Analysis.

MLA

Riker David A, United States, . Energy costs and export performance. [Washington, D.C.]: International Trade Administration, Office of Competition and Economic Analysis. 2012.