Cita APA

Ur, P., Wright, A. H. 1. -., & Swan, M. 1. (1992). Five-minute activities: A resource book of short activities. Cambridge: Cambridge University Press.

Citación estilo Chicago

Ur, Penny, Andrew H. 1937 - Wright, y Michael 1936- Swan. Five-minute Activities: A Resource Book of Short Activities. Cambridge: Cambridge University Press, 1992.

Cita MLA

Ur, Penny, Andrew H. 1937 - Wright, y Michael 1936- Swan. Five-minute Activities: A Resource Book of Short Activities. Cambridge: Cambridge University Press, 1992.