APA
j.spielvogel j., . (1999). modern world history. : mc graw hill.
Chicago
j.spielvogel jackson, . 1999. modern world history. : mc graw hill.
Harvard
j.spielvogel j., . (1999). modern world history. : mc graw hill.
MLA
j.spielvogel jackson, . modern world history. : mc graw hill. 1999.
