Gaya APA

Naisbitt, J., Aburdene, P. (1990). Ten new directions for the 1990's: megatrends 2000 . New York: Avon Books.

Gaya MLA

Naisbitt, John., Aburdene, Patricia. "Ten new directions for the 1990's: megatrends 2000". New York: Avon Books, 1990. Text.