Gaya APA

Duncan, M, D, J., 2019010262049, Y, E, , /. (1968). An Introduction To Legal Systems (1). London: Sweet&Maxwell.

Gaya MLA

Duncan, M., Derret,, J.., 2019010262049, YOSHI, ERLINA, , /. "An Introduction To Legal Systems". 1 London: Sweet&Maxwell, 1968. Text.