The Builders :
marvels of engineering /
prepared by the Book Division, National Geographic Society.
APA Citation
National Geographic Society (U.S.). Book Division. (1992). The Builders: marvels of engineering. Washington, DC: The Society.
MLA Citation
National Geographic Society (U.S.). Book Division. The Builders: Marvels of Engineering. Washington, DC: The Society, 1992.
Warning: These citations may not always be complete (especially for serials).