APA引文

O’Brien, D. (2020). A small Iowa farmer's perspective on COVID-19. Agric Human Values.

Citação norma Chicago

O’Brien, Denise. "A Small Iowa Farmer's Perspective On COVID-19." Agric Human Values 2020.

MLA引文

O’Brien, Denise. "A Small Iowa Farmer's Perspective On COVID-19." Agric Human Values 2020.

警告：這些引文格式不一定是100％准確.