Gale Group & Pederson, J. P. (2016). International directory of company histories. St. James Press, a part of Gale, Cengage Learning.
Chicago Style (17. basım) AtıfGale Group ve Jay P. Pederson. International Directory of Company Histories. Farmington Hills, Mich: St. James Press, a part of Gale, Cengage Learning, 2016.
MLA (9th ed.) AtıfGale Group ve Jay P. Pederson. International Directory of Company Histories. St. James Press, a part of Gale, Cengage Learning, 2016.
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