Gaya APA
Tignor, R., Adelman, J. (2002).
Worlds together, worlds apart : a history of modern world from the mongol empire to the present (1).
New York:
W W norton.
Gaya MLA
Tignor, Robert., Adelman, Jeremy.
"Worlds together, worlds apart : a history of modern world from the mongol empire to the present".
1
New York:
W W norton,
2002.
Text.