Law, F., & Knight, i. P. (2008). Formas. Everest.
Chicago Style aipamenaLaw, Felicia, and il. Paula Knight. Formas. Everest, 2008.
MLA aipamenaLaw, Felicia, and il. Paula Knight. Formas. Everest, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.