Gaya APA
Kay, S. (2016).
National geographic science: rocks and soil near the great lakes (Cet. 1).
Washington, D.C:
National Geographic School Publishing.
Gaya MLA
Kay, Susan.
"National geographic science: rocks and soil near the great lakes".
Cet. 1
Washington, D.C:
National Geographic School Publishing,
2016.
Equipment.