Gaya APA

Bell, J. (2018). E-book The Space Book Revised and Updated: From the Beginning to the End of Time, 250 Milestones in the History of Space & Astronomy . New York: Sterling.

Gaya MLA

Bell, Jim. "E-book The Space Book Revised and Updated: From the Beginning to the End of Time, 250 Milestones in the History of Space & Astronomy". New York: Sterling, 2018. Text.