Lockard, C. A. (2008). Societies, networks, and transitions: A global history. Houghton Mifflin.
Cita Chicago (17th ed.)Lockard, Craig A. Societies, Networks, and Transitions: A Global History. Boston, Mass: Houghton Mifflin, 2008.
Cita MLA (9th ed.)Lockard, Craig A. Societies, Networks, and Transitions: A Global History. Houghton Mifflin, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.