APA-viite (7. p.)
United States. Air Force, ebrary, Inc, Khalilzad, Z., & Shapiro, J. (2002). Strategic appraisal: United States air and space power in the 21st century. RAND, Project Air Force.
Chicago-viite (17. p.)
United States. Air Force, Inc ebrary, Zalmay Khalilzad, ja Jeremy Shapiro. Strategic Appraisal: United States Air and Space Power in the 21st Century. Santa Monica, CA: RAND, Project Air Force, 2002.
MLA-viite (9. p.)
United States. Air Force, et al. Strategic Appraisal: United States Air and Space Power in the 21st Century. RAND, Project Air Force, 2002.
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