APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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

Warning: These citations may not always be 100% accurate.