Gaya APA

Bell, J. (2019). E-book The Earth Book: From the Beginning to the End of Our Planet, 250 Milestones in the History of Earth Science . New York: Sterling.

Gaya MLA

Bell, Jim. "E-book The Earth Book: From the Beginning to the End of Our Planet, 250 Milestones in the History of Earth Science". New York: Sterling, 2019. Text.