Citazione APA

Clack, G., & VanSpanckeren, K. (2001). USA literature in brief. United States of America: Bureau of International Information Programs.

Stile di citazione Chicago

Clack, George, e Kathryn VanSpanckeren. USA Literature in Brief. United States of America: Bureau of International Information Programs, 2001.

Citazione MLA

Clack, George, e Kathryn VanSpanckeren. USA Literature in Brief. United States of America: Bureau of International Information Programs, 2001.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.