Cita APA (7a ed.)

Briggs, R., & Ellis, G. (1995). The Snowman: The original storybook with activities for young learners of English. Oxford University Press.

Cita Chicago Style (17a ed.)

Briggs, Raymond, y Gail Ellis. The Snowman: The Original Storybook with Activities for Young Learners of English. Oxford [etc.]: Oxford University Press, 1995.

Cita MLA (9a ed.)

Briggs, Raymond, y Gail Ellis. The Snowman: The Original Storybook with Activities for Young Learners of English. Oxford University Press, 1995.