APA (7th ed.) Citation

Carol S. Beers, James W. Beers, & Jeffrey O. Smith. (2010). A principal's guide to literacy instruction. New York.

Chicago Style (17th ed.) Citation

Carol S. Beers, James W. Beers, and Jeffrey O. Smith. A Principal's Guide to Literacy Instruction. Guilford Press: New York, 2010.

MLA (9th ed.) Citation

Carol S. Beers, et al. A Principal's Guide to Literacy Instruction. New York, 2010.