Galligan, D. J. (1990). Discretionary powers: A legal study of official discretion. Claredon Press.
Παραπομπή Chicago StyleGalligan, D. J. Discretionary Powers: A Legal Study of Official Discretion. Oxford: Claredon Press, 1990.
Παραπομπή MLAGalligan, D. J. Discretionary Powers: A Legal Study of Official Discretion. Claredon Press, 1990.
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