APA引文

NORTHUP, S. (2017). 12 YEARS A SLAVE: A TRUE STORY. FP CLASSICS.

芝加哥风格引文

NORTHUP, SOLOMON. 12 YEARS A SLAVE: A TRUE STORY. NEW DELHI: FP CLASSICS, 2017.

MLA引文

NORTHUP, SOLOMON. 12 YEARS A SLAVE: A TRUE STORY. FP CLASSICS, 2017.

警告：这些引文格式不一定是100％准确.