Cita APA

Palmer, R. R. (. R. (2007). A history of the modern world. Boston: McGraw-Hill.

Chicago Style Citation

Palmer, R. R. (Robert Roswell). A History of the Modern World. Boston: McGraw-Hill, 2007.

Cita MLA

Palmer, R. R. (Robert Roswell). A History of the Modern World. Boston: McGraw-Hill, 2007.