Citazione Stile APA (7a Edizione)

Peterson, S., & Peterson, J. (2002). Working with clay (2nd ed.). Prentice Hall.

Citazione stile Chigago Style (17a edizione)

Peterson, Susan, e Jan Peterson. Working with Clay. 2nd ed. New Jersey: Prentice Hall, 2002.

Citatione MLA (9a ed.)

Peterson, Susan, e Jan Peterson. Working with Clay. 2nd ed. Prentice Hall, 2002.