Gaya APA

Holt, S., O\'Connor, J, R. (1977). Exploring world history : a global approach / Sol Holt, John R. O'Connor . New York: Globe Book Company.

Gaya MLA

Holt, Sol., O\'Connor, John, R.. "Exploring world history : a global approach / Sol Holt, John R. O'Connor". New York: Globe Book Company, 1977. Buku.