Barbisan, C., Concari, L., Rodríguez, M., & Urrestarazu, J. Snap!: Pupil's Book 3. An English Course for Younger Learners (1a. ed.). Heinemann Educational Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBarbisan, C., L. Concari, M. Rodríguez, और J. Urrestarazu. Snap!: Pupil's Book 3. An English Course for Younger Learners. 1a. ed. London: Heinemann Educational Books.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBarbisan, C., et al. Snap!: Pupil's Book 3. An English Course for Younger Learners. 1a. ed. Heinemann Educational Books.
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