Cita APA (7th ed.)
Principles of structure / Wyalt,K.J: University Press.
Cita Chicago (17th ed.)
Principles of Structure / Wyalt,K.J: University Press.
Cita MLA (9th ed.)
Principles of Structure / Wyalt,K.J: University Press.
Atenció: Aquestes cites poden no estar 100% correctes.