APA Style

Hub, B. (2019). Producers : the drivers of the economy | production of goods | economics for kids | 3rd grade social studies | children's government books . Delaware: speedy publishing LLC.

MLA Style

Hub, Biz. "Producers : the drivers of the economy | production of goods | economics for kids | 3rd grade social studies | children's government books". Delaware: speedy publishing LLC, 2019. Text.