Ur, P. (1992). Five - Minute activities: A resource book of short activities. Cambridge: Cambridge University Press.
Chicago-стиль цитированияUr, Penny. Five - Minute Activities: A Resource Book of Short Activities. Cambridge: Cambridge University Press, 1992.
MLA-цитированиеUr, Penny. Five - Minute Activities: A Resource Book of Short Activities. Cambridge: Cambridge University Press, 1992.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.