If one person wrote the children’s book and another illustrated it, place the illustrator’s name in the Contributor element. The following provides an example:

Leaf, Munro. The Story of Ferdinand. Illustrated by Robert Lawson, Penguin Random House, 2011.

There are two ways to cite a children’s book written and illustrated by the same person. Take the example of Where the Wild Things Are, written and illustrated by Maurice Sendak. One way to cite this book is to list Sendak as the author and not specify an illustrator:

Sendak, Maurice. Where the Wild Things Are. HarperCollins Publishers, 1963.

You might explain in your prose that Sendak is also the illustrator of the book, if that is an important point in your essay.

An alternative way to construct a citation is to list Sendak as the author and also specify that he is the illustrator in the Contributor element:

Sendak, Maurice. Where the Wild Things Are. Illustrated by Sendak, HarperCollins Publishers, 1963.

Note that because Sendak’s full name appears in the Author element, only his surname is used in the Contributor element.

For more on citing works with illustrators, see our related post on citing comics and graphic novels.