Cita APA (7a ed.)

Sloan, H. G. (2014). Counting by 7s. Puffin Books.

Cita Chicago Style (17a ed.)

Sloan, Holly Goldberg. Counting by 7s. New York, New York: Puffin Books, 2014.

Cita MLA (8a ed.)

Sloan, Holly Goldberg. Counting by 7s. Puffin Books, 2014.

Precaución: Estas citas no son 100% exactas.