Roumanis, A. (2019). La tierra. Smartbook Media Inc.
https://learn.openlightbox.com/TASubscription/92fe5023-7012-4c62-a2bf-77a2d5dd0963/9081e918-aca7-4d85-8f61-2ac49ebd27ee/5/581
The Chicago Manual of Style (Chicago)
Roumanis, Alexis. La tierra. Descubre los planetas. New York: Smartbook Media Inc., 2019,
https://learn.openlightbox.com/TASubscription/92fe5023-7012-4c62-a2bf-77a2d5dd0963/9081e918-aca7-4d85-8f61-2ac49ebd27ee/5/581. Accessed
14 Apr. 2026.
The Modern Language Association of America (MLA)
Roumanis, Alexis. La tierra. Smartbook Media Inc., 2019. Descubre los planetas. Lightbox Spanish Subscription
https://learn.openlightbox.com/TASubscription/92fe5023-7012-4c62-a2bf-77a2d5dd0963/9081e918-aca7-4d85-8f61-2ac49ebd27ee/5/581.
