APA引文

Hjelmar, U. (2017). Public Opinion Polling in a Globalized World. Springer.

Chicago Style Citation

Hjelmar, Ulf. Public Opinion Polling in a Globalized World. Springer, 2017.

MLA引文

Hjelmar, Ulf. Public Opinion Polling in a Globalized World. Springer, 2017.

警告：這些引文格式不一定是100％准確.