APA (7e ed.) Bronvermelding

.Petersen, J. L. (1994). The Road to 2015: Profiles of the future. Waite Group Press; [Publishers Group West [distributor.

Chicago (17e ed.) Bronvermelding

.Petersen, John L. The Road to 2015: Profiles of the Future. Corte Madera, Calif. : Emeryville, CA: Waite Group Press; [Publishers Group West [distributor, 1994.

MLA (9e ed.) Bronvermelding

.Petersen, John L. The Road to 2015: Profiles of the Future. Waite Group Press; [Publishers Group West [distributor, 1994.

Let op: Deze citaties zijn niet altijd 100% accuraat.