Cita APA (7th ed.)

Doney, M., & Hansen, G. (2006). The very worried sparrow. Lion Children's Book.

Cita Chicago (17th ed.)

Doney, Meryl, i Gaby Hansen. The Very Worried Sparrow. Oxford, England: Lion Children's Book, 2006.

Cita MLA (9th ed.)

Doney, Meryl, i Gaby Hansen. The Very Worried Sparrow. Lion Children's Book, 2006.