Bueno de Mesquita, Bruce, David Newman, Alvin Rabushka. 1996. Red Flag Over Hong Kong . Grieco, Joseph M. 1988a. Anarchy and the Limits of Cooperation. As discussed above, citations are used to attribute ideas to their original author and to document sources of information.
Citations are quite easy to form if the reference list has already been written.
However, punctuation is used if there is more than one author as in this citation for Red Flag Over Hong Kong. That is to say that their names are written as they would be in a sentence. More than one work by an author can be cited at once. In such a case, commas are used to separate the dates. Works by several authors can also be cited in one in-text reference.