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His color book "evolved into the Pantone color chart," according to Lewis. "Ridgway's Colors" are still used today by mycologists, philatelists and food colorists, according to Lewis' 2012 book.
His color book "evolved into the Pantone color chart," according to Lewis. "Ridgway's Colors" are still used today by mycologists, philatelists and food colorists, according to Lewis' 2012 book.
His color book "evolved into the Pantone color chart," according to Lewis. "Ridgway's Colors" are still used today by mycologists, philatelists and food colorists, according to Lewis' 2012 book.