APA citiranje

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

Chicago Style (17th ed.) Citation

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

MLA citiranje

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