APA Style
The Usborne Book of Knowledge. (1979).
Belgium:
Usborne.
Chicago Style
The Usborne Book of Knowledge.
.
Belgium:
Usborne,
1979.
Text.
MLA Style
The Usborne Book of Knowledge.
.
Belgium:
Usborne,
1979.
Text.
Turabian Style
The Usborne Book of Knowledge.
Belgium:
Usborne,
1979.
Print.