APA Style
Britannia Discovery Library Encyclopedia Britannica , Inc. ().
The Shapes Book .
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Chicago Style
Britannia Discovery Library Encyclopedia Britannica , Inc.
The Shapes Book.
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Text.
MLA Style
Britannia Discovery Library Encyclopedia Britannica , Inc.
The Shapes Book.
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Text.
Turabian Style
Britannia Discovery Library Encyclopedia Britannica , Inc.
The Shapes Book.
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Print.