Cita APA (7a ed.)

Paul, K., Thomas, V., & Shipton, P. (1999). Winnie in winter: : [edition for learners of english] (2nd repr. of the 1st ed. of 1999.). Oxford university.

Cita Chicago Style (17a ed.)

Paul, Korky, Valérie Thomas, y Paul Shipton. Winnie in Winter: : [edition for Learners of English]. 2nd repr. of the 1st ed. of 1999. Oxford: Oxford university, 1999.

Cita MLA (9a ed.)

Paul, Korky, et al. Winnie in Winter: : [edition for Learners of English]. 2nd repr. of the 1st ed. of 1999. Oxford university, 1999.