APA
Sykes E I, Llanham D J, . (1997). General principles of administrative law. Sydney: Butterworths.
Chicago
Sykes E I, Llanham D J, . 1997. General principles of administrative law. Sydney: Butterworths.
Harvard
Sykes E I, Llanham D J, . (1997). General principles of administrative law. Sydney: Butterworths.
MLA
Sykes E I, Llanham D J, . General principles of administrative law. Sydney: Butterworths. 1997.