APA Style
The New Book Of Knowledge : W.X.Y.Z Volume 20. (1974).
USA:
Grolier Inc.
Chicago Style
The New Book Of Knowledge : W.X.Y.Z Volume 20.
1.
USA:
Grolier Inc,
1974.
Text.
MLA Style
The New Book Of Knowledge : W.X.Y.Z Volume 20.
1.
USA:
Grolier Inc,
1974.
Text.
Turabian Style
The New Book Of Knowledge : W.X.Y.Z Volume 20.
USA:
Grolier Inc,
1974.
Print.