APA Style
Gould, David. ().
The Wonderful World of Knowledge: Great Travellers and Explorers .
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Chicago Style
Gould, David.
The Wonderful World of Knowledge: Great Travellers and Explorers.
:
,
.
Text.
MLA Style
Gould, David.
The Wonderful World of Knowledge: Great Travellers and Explorers.
:
,
.
Text.
Turabian Style
Gould, David.
The Wonderful World of Knowledge: Great Travellers and Explorers.
:
,
.
Print.