APA

Hill S., . (2002). Sixty Trends in Sixty Minutes. New York: John Wiley & Sons, Ins.

Chicago

Hill S, . 2002. Sixty Trends in Sixty Minutes. New York: John Wiley & Sons, Ins.

Harvard

Hill S., . (2002). Sixty Trends in Sixty Minutes. New York: John Wiley & Sons, Ins.

MLA

Hill S, . Sixty Trends in Sixty Minutes. New York: John Wiley & Sons, Ins. 2002.