Leading producers, sometimes in conjunction with leading consumers, occasionally use national cartels to control and stabilize prices for a commodity on world markets

If a study is cited in the text of a research article,

A) the authors should be notified. B) it must appear in the reference section of the article. C) it must be published in the same journal. D) it should be included in at least one table.

What did Jim Crow laws represent?

a. the official system of integration in the South - b. the voter registration system in the South that frequently disenfranchised blacks c. the official system of segregation in the South d. the official social contract used in the South