APA استشهاد

(2000). Landmarks of American language and linguistics. Washington, D.C: United States Department of State.

استشهاد بنمط شيكاغو

Landmarks of American Language and Linguistics. Washington, D.C: United States Department of State, 2000.

MLA استشهاد

Landmarks of American Language and Linguistics. Washington, D.C: United States Department of State, 2000.

تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.