The aerospace force :
defending America in the 21st century : --a white paper on aerospace integration.

APA Citation

United States. Dept. of the Air Force. (2000). The aerospace force: defending America in the 21st century : --a white paper on aerospace integration. [Washington, DC: Dept. of the Air Force.

MLA Citation

United States. Dept. of the Air Force. The Aerospace Force: Defending America In the 21st Century : --a White Paper On Aerospace Integration. [Washington, DC: Dept. of the Air Force, 2000.

Warning: These citations may not always be complete (especially for serials).