Once upon MacDonald's farm /
Stephen Gammell.
APA Citation
Gammell, S. (2000). Once upon MacDonald's farm. Rev. format ed. New York: Simon & Schuster Books for Young Readers.
MLA Citation
Gammell, Stephen. Once Upon MacDonald's Farm. Rev. format ed. New York: Simon & Schuster Books for Young Readers, 2000.
Warning: These citations may not always be complete (especially for serials).