APA引文

by Tuju, R. It's not easy. Ace Communications.

芝加哥风格引文

by Tuju, Raphael. It's Not Easy. Nairobi, kenya: Ace Communications.

MLA引文

by Tuju, Raphael. It's Not Easy. Ace Communications.

警告：这些引文格式不一定是100％准确.