APA (7th ed.) Citation

Peppas, L. (2013). What is a gas? Crabtree Publishing Company.

Chicago Style (17th ed.) Citation

Peppas, Lynn. What Is a Gas? St. Catharines, Ontario ; New York, N.Y.: Crabtree Publishing Company, 2013.

MLA (9th ed.) Citation

Peppas, Lynn. What Is a Gas? Crabtree Publishing Company, 2013.