Encyclopaedia Britannica, Inc.

Britannica Year Book of Science and the Future

By Calhoun, David. (Editor).

Yearbook of Science and the Future 1998

By Charles Cegielski

Britannica Book of the Year 2000

By Charles P. Trumbull

Britannica Book of the Year 1970

By William Benton

Britannica Book of the Year 2000

By Charles P. Trumbull