Tohutoro APA (7th ed.)
Carattoli, M. C. (2000). Nature & Environment: Plus Activities Level Two (1a. ed.). Richmond Publishing.
Tohutoru Kātū Chicago (17th ed.)
Carattoli, María Cecilia. Nature & Environment: Plus Activities Level Two. 1a. ed. Buenos Aires: Richmond Publishing, 2000.
Tohutoro MLA (9th ed.)
Carattoli, María Cecilia. Nature & Environment: Plus Activities Level Two. 1a. ed. Richmond Publishing, 2000.
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