APA引文

Boehm, C. Purposive social selection and the evolution of human altruism.

Trích dẫn kiểu Chicago

Boehm, Christopher. Purposive Social Selection and the Evolution of Human Altruism.

MLA引文

Boehm, Christopher. Purposive Social Selection and the Evolution of Human Altruism.

警告：这些引文格式不一定是100％准确.