APA

Crawford R., . (1991). In the era of human capital : the emergence of talent intelligence and knowledge as the warldwide economic force and what it means to managers and investors. New York: Harper Business.

Chicago

Crawford Richard, . 1991. In the era of human capital : the emergence of talent intelligence and knowledge as the warldwide economic force and what it means to managers and investors. New York: Harper Business.

Harvard

Crawford R., . (1991). In the era of human capital : the emergence of talent intelligence and knowledge as the warldwide economic force and what it means to managers and investors. New York: Harper Business.

MLA

Crawford Richard, . In the era of human capital : the emergence of talent intelligence and knowledge as the warldwide economic force and what it means to managers and investors. New York: Harper Business. 1991.