APA način citiranja (7. izdanje)

Walling, D. R. (1995). At the threshold of the millenium. Phi Delta Kappa Educational Foundation.

Čikaški stil citiranja (17. izdanje)

Walling, Donovan R. At the Threshold of the Millenium. Indiana: Phi Delta Kappa Educational Foundation, 1995.

MLA način citiranja (9. izdanje)

Walling, Donovan R. At the Threshold of the Millenium. Phi Delta Kappa Educational Foundation, 1995.