APA引文

Obama, B. (2020). A promised land (Unabridged.). Penguin Random House LLC.

Chicago Style (17th ed.) Citation

Obama, Barack. A Promised Land. Unabridged. New York: Penguin Random House LLC, 2020.

MLA引文

Obama, Barack. A Promised Land. Unabridged. Penguin Random House LLC, 2020.

警告：這些引文格式不一定是100％准確.