Gaya APA

Naisbitt, J., Aburdene, P. (1990). Ten new directions for the 1990's : megatrends 2000 . New York: William Morrow and Company, Inc..

Gaya MLA

Naisbitt, John., Aburdene, Patricia. "Ten new directions for the 1990's : megatrends 2000". New York: William Morrow and Company, Inc., 1990. Text.