APA (7th ed.) Citation

(1998). Millennium evenings at the White House. science in the next millennium / [presented by Stephen Hawking]. [Episode] 2. Imagination and change.

Chicago Style (17th ed.) Citation

Millennium Evenings at the White House. Science in the Next Millennium / [presented by Stephen Hawking]. [Episode] 2. Imagination and Change. 1998.

MLA (9th ed.) Citation

Millennium Evenings at the White House. Science in the Next Millennium / [presented by Stephen Hawking]. [Episode] 2. Imagination and Change. 1998.