Kopper, P., Clark, C., & Sandved, K. B. (1982). The National Museum of Natural History. Abrams in association with the Smithsonian Institution.
Cita Chicago Style (17a ed.)Kopper, Philip, Chip Clark, e Kjell Bloch Sandved. The National Museum of Natural History. New York: Abrams in association with the Smithsonian Institution, 1982.
Cita MLA (8a ed.)Kopper, Philip, et al. The National Museum of Natural History. Abrams in association with the Smithsonian Institution, 1982.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.