edited by Frederick van der Ploeg. edited by Frederick C. Beiser. edited by Aldert van der Ziel [edited by Henk van der Veen] [edited by Henk van der Veen]. edited by Frederick J. Ryan, Jr. edited by Frederick W. Axelgard edited by Frederico Duarte. edited by Iris von der Tann. edited by F. Robert van der Linden.