coauthor ,
joint author

Sanford was the single or joint author of approximately 200 academic articles and around 12 books.

The most outrageous concerns one of its joint authors.

He was joint author of several well- known medical books.

Indeed, the joint author of the most quoted of them.

In addition to many published articles Forster was joint author of the book:

Hart was author, joint author, or editor of about 100 volumes.

As the joint author of a recent book on the regiment explains.

Another change in 1963 made it clear that joint authors of a book were eligible for the award.

In 1904 he was the joint author of a book on half-timbered buildings.

In a film work, the authors of the subject matter, scenario, and music, along with the artistic director, are considered joint authors.