APA Style
Ingpen, Robert,. (1995).
Encyclopedia of ideas that changed the world : the greatest discoveries and inventations of human history .
London:
A Dragon's Wold Books.
Chicago Style
Ingpen, Robert,.
Encyclopedia of ideas that changed the world : the greatest discoveries and inventations of human history.
London:
A Dragon's Wold Books,
1995.
Text.
MLA Style
Ingpen, Robert,.
Encyclopedia of ideas that changed the world : the greatest discoveries and inventations of human history.
London:
A Dragon's Wold Books,
1995.
Text.
Turabian Style
Ingpen, Robert,.
Encyclopedia of ideas that changed the world : the greatest discoveries and inventations of human history.
London:
A Dragon's Wold Books,
1995.
Print.