Cita APA (7th ed.)

Barca, S. History: Stefania Barca. Keywords for environmental studies.([2016]).

Cita Chicago (17th ed.)

Barca, Stefania. "History: Stefania Barca." Keywords for Environmental Studies.([2016]) .

Cita MLA (8th ed.)

Barca, Stefania. "History: Stefania Barca." Keywords for Environmental Studies.([2016]), .

Atenció: Aquestes cites poden no estar 100% correctes.