: The full book is accessible for borrowing or digital viewing on the Internet Archive .
The primary work titled " " is a highly influential book by Michael McCormick , published in 2001 by Cambridge University Press . Origins of the European Economy: Communications...
: A paper by Johan Callmer, which applies McCormick's seminal work to the chronology of Viking-Age beads and commerce, is available on ResearchGate . : The full book is accessible for borrowing
Communications and Commerce, AD 300 900. By Michael McCormick AD 300 900. By Michael McCormick