ADAMS SIMON. (2019). GREAT JUNIOR ENCYCLOPEDIA GREAT EXPLORERS (2013 Ed.). PARRAGON BOOK PUBLISHERS.
Lua i Stíl Chicago (17ú heag.)ADAMS SIMON. GREAT JUNIOR ENCYCLOPEDIA GREAT EXPLORERS. 2013 Ed. LONDON: PARRAGON BOOK PUBLISHERS, 2019.
Lua MLA (9ú heag.)ADAMS SIMON. GREAT JUNIOR ENCYCLOPEDIA GREAT EXPLORERS. 2013 Ed. PARRAGON BOOK PUBLISHERS, 2019.
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