APA

Richardson H. W., . (1984). Population distribution policies. New York: Universidad de New York.

Chicago

Richardson Harry W, . 1984. Population distribution policies. New York: Universidad de New York.

Harvard

Richardson H. W., . (1984). Population distribution policies. New York: Universidad de New York.

MLA

Richardson Harry W, . Population distribution policies. New York: Universidad de New York. 1984.