Cita APA (7th ed.)
Oxford University Press. (1997). Professor Puffendorf's: Secret potions (2a. ed.). Oxford University Press.
Cita Chicago (17th ed.)
Oxford University Press. Professor Puffendorf's: Secret Potions. 2a. ed. Oxford: Oxford University Press, 1997.
Cita MLA (9th ed.)
Oxford University Press. Professor Puffendorf's: Secret Potions. 2a. ed. Oxford University Press, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.