Gaya APA

Celente, G. (1997). Trends 2000 : how to prepare for and profit from the changes of the 21st century . New York: Warner Books.

Gaya MLA

Celente, Gerald. "Trends 2000 : how to prepare for and profit from the changes of the 21st century". New York: Warner Books, 1997. Buku/Printed Material.