Cita APA (7a ed.)

Keats, E. J. (1978). The snowy day. Puffin Books.

Cita Chicago Style (17a ed.)

Keats, Ezra Jack. The Snowy Day. Harmondsworth, New York: Puffin Books, 1978.

Cita MLA (9a ed.)

Keats, Ezra Jack. The Snowy Day. Puffin Books, 1978.