Cita APA (7a ed.)

Abel, G. P. (2021). What, if anything, is out there (First edition.). Indigo River Publishing.

Cita Chicago Style (17a ed.)

Abel, Gene P. What, If Anything, Is Out There. First edition. Pensacola, FL: Indigo River Publishing, 2021.

Cita MLA (8a ed.)

Abel, Gene P. What, If Anything, Is Out There. First edition. Indigo River Publishing, 2021.

Precaución: Estas citas no son 100% exactas.