ISBN-13: 9781138485587 / Angielski / Twarda / 2018 / 228 str.
ISBN-13: 9781138485587 / Angielski / Twarda / 2018 / 228 str.
Originally published in 1985. This book traces the explorations and achievements of those who undertook missions of as extensions of their patrons' eyes. The fascination and wide-ranging story is told with full scholarly documentation and many new insights and discoveries.