Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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