Cita APA (7th ed.)

Gale Group & Johnson, D. D. (2016). International directory of company histories. St. James Press, a part of Gale, Cengage Learning.

Cita Chicago (17th ed.)

Gale Group i Drew D. Johnson. International Directory of Company Histories. Farmington Hills, Michigan: St. James Press, a part of Gale, Cengage Learning, 2016.

Cita MLA (9th ed.)

Gale Group i Drew D. Johnson. International Directory of Company Histories. St. James Press, a part of Gale, Cengage Learning, 2016.