United States. Central Intelligence Agency. (1988). Azimuthal equidistant projection, centered on Beijing, China, 39⁰55ʹN, 116⁰23ʹE. Central Intelligence Agency.
Chicago Style (17th ed.) CitationUnited States. Central Intelligence Agency. Azimuthal Equidistant Projection, Centered on Beijing, China, 39⁰55ʹN, 116⁰23ʹE. [Washington, D.C.: Central Intelligence Agency, 1988.
MLA (8th ed.) CitationUnited States. Central Intelligence Agency. Azimuthal Equidistant Projection, Centered on Beijing, China, 39⁰55ʹN, 116⁰23ʹE. Central Intelligence Agency, 1988.
Warning: These citations may not always be 100% accurate.