Cita APA (7a ed.)

Birney, B. G. (2012). School days according to Humphrey. Puffin Books, an imprint of Penguin Group.

Cita Chicago Style (17a ed.)

Birney, Betty G. School Days According to Humphrey. New York: Puffin Books, an imprint of Penguin Group, 2012.

Cita MLA (8a ed.)

Birney, Betty G. School Days According to Humphrey. Puffin Books, an imprint of Penguin Group, 2012.

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