Cita APA (7a ed.)
Tortell, P. D. (2020). Earth 2020: An Insider’s Guide to a Rapidly Changing Planet. Open Book Publishers.
Cita Chicago Style (17a ed.)
Tortell, Philippe D. Earth 2020: An Insider’s Guide to a Rapidly Changing Planet. Open Book Publishers, 2020.
Cita MLA (9a ed.)
Tortell, Philippe D. Earth 2020: An Insider’s Guide to a Rapidly Changing Planet. Open Book Publishers, 2020.
Precaución: Estas citas no son 100% exactas.