Trích dẫn APA

An investigation into modality markers used in political speeches by US presidents.

Trích dẫn kiểu Chicago

An Investigation Into Modality Markers Used in Political Speeches By US Presidents.

Trích dẫn MLA

An Investigation Into Modality Markers Used in Political Speeches By US Presidents.

Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.