APA Style
Entering the 21st century. (1999).
New York:
Oxford University Press.
Chicago Style
Entering the 21st century.
.
New York:
Oxford University Press,
1999.
.
MLA Style
Entering the 21st century.
.
New York:
Oxford University Press,
1999.
.
Turabian Style
Entering the 21st century.
New York:
Oxford University Press,
1999.
.