Ur, P., & Wright, A. (1992). Five - minute activities: A resource book of short activities. Cambridge: Cambridge University.
استشهاد بنمط شيكاغوUr, Penny, و Andrew Wright. Five - Minute Activities: A Resource Book of Short Activities. Cambridge: Cambridge University, 1992.
MLA استشهادUr, Penny, و Andrew Wright. Five - Minute Activities: A Resource Book of Short Activities. Cambridge: Cambridge University, 1992.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.