Gaya APA

Lim, A, K. (2016). National geographic science: arches, arches everywhere! (Cet. 1). Washington, D.C: National Geographic School Publishing.

Gaya MLA

Lim, Allison, K.. "National geographic science: arches, arches everywhere!". Cet. 1 Washington, D.C: National Geographic School Publishing, 2016. Equipment.