Abel, G. P. (2021). What, if anything, is out there (First edition.). Indigo River Publishing.
Chicago Style (17th ed.) CitationAbel, Gene P. What, If Anything, Is Out There. First edition. Pensacola, FL: Indigo River Publishing, 2021.
MLA引文Abel, Gene P. What, If Anything, Is Out There. First edition. Indigo River Publishing, 2021.
警告:這些引文格式不一定是100%准確.