Cite

Expo 2000 (2000: Hannover, Germany)

MLA

Heller, Alfred E. Expo 2000 (2000: Hannover, Germany). 2000. https://collections.library.yale.edu/catalog/2029262.

APA, 6th edition

Heller, A. E. (2000). Expo 2000 (2000: Hannover, Germany). https://collections.library.yale.edu/catalog/2029262.