APA引文

Cruz, E. S. (2019). 21 lessons for the 21st century. Animo Repository.

Chicago Style Citation

Cruz, Elfren Sicangco. 21 Lessons for the 21st Century. Animo Repository, 2019.

MLA引文

Cruz, Elfren Sicangco. 21 Lessons for the 21st Century. Animo Repository, 2019.

警告：這些引文格式不一定是100％准確.