Panek, R. (2019). The trouble with gravity: Solving the mystery beneath our feet. Houghton Mifflin Harcourt.
Cita Chicago Style (17a ed.)Panek, Richard. The Trouble with Gravity: Solving the Mystery Beneath Our Feet. Boston ; New York: Houghton Mifflin Harcourt, 2019.
Cita MLA (8a ed.)Panek, Richard. The Trouble with Gravity: Solving the Mystery Beneath Our Feet. Houghton Mifflin Harcourt, 2019.
Precaución: Estas citas no son 100% exactas.