The Castle of Knowledge: Recorde, Robert: 9781478355984: Amazon.com: Books
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Recorde, Robert | SpringerLink
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Robert Recorde
Retrobituaries: Robert Recorde, Inventor of the Equals Sign | Mental Floss
Robert Recorde (1510 - 1558) - Biography - MacTutor History of Mathematics
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Woodcut Title Page From Robert Recorde The Castle Of Knowledge 1556 | Woodcut, Historical symbols, Alchemy
Robert Recorde · The Castle of Knowledge (Paperback Book) (2012)
The castle of knowledge
Mathematical Treasure: Robert Recorde's Castle of Knowledge | Mathematical Association of America
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The Pathway to Knowledge book by Robert Recorde
.jpg?mode=max "RECORDE, Robert (ca 1510-1558). The Castle of Knowledge. London: Reginald Wolfe, 1556.")
RECORDE, Robert (ca 1510-1558). The Castle of Knowledge. London: Reginald Wolfe, 1556.
Robert Recorde - Wikipedia
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Robert Recorde – Geoff Brookes
The Castle of Knowledge: Recorde, Robert: 9781478355984: Amazon.com: Books
