Its staff is currently working on a third edition.
Jamie is an editor for her school newspaper, and she keeps busy working on a special edition.
Until two years ago he was working on a revised ninth edition.
At the time of his death, Bela had begun working on a second edition.
Maybe it's time for him to start working on a second edition.
The book remains in print and until recently he was working on an updated edition.
Haskell was working on a further revised edition when he died.
Kylling is known to have worked on an enlarged edition, which however was never published.
Goaded into action, the Britannica began to work on a new edition, the current 15th.
He was working on a sixth edition when he died.