APA Style

Palmer, R, R, .., Colton, J. (1956). A History of the Modern World (4th ed.) / R. R. Palmer, Joel Colton (4). New York.: Alered A. Knope..

MLA Style

Palmer, R., R, .., Colton, Joel.. "A History of the Modern World (4th ed.) / R. R. Palmer, Joel Colton". 4 New York.: Alered A. Knope., 1956. Textbook ห้องสมุดทั่วไป.