APA

(2010). Earth Science. NEWYORK: Holt Rinehart and Winston.

Chicago

2010. Earth Science. NEWYORK: Holt Rinehart and Winston.

Harvard

(2010). Earth Science. NEWYORK: Holt Rinehart and Winston.

MLA

Earth Science. NEWYORK: Holt Rinehart and Winston. 2010.