Gaya APA
Tignor,Robert, . et al (2008).
Worlds Together Worlds Apart: A history of the world (Ed.2).
London:
W.W.Norton And Company.
Gaya MLA
Tignor,Robert, . et al.
"Worlds Together Worlds Apart: A history of the world".
Ed.2
London:
W.W.Norton And Company,
2008.
Text.