Gaya APA

Adler, M, J. (1981). Six great ideas : truth, goodness, beauty, liberty, equality, justice . New York: Macmillan Publishing Co. Inc.; 1981.

Gaya MLA

Adler, Mortimer, J.. "Six great ideas : truth, goodness, beauty, liberty, equality, justice". New York: Macmillan Publishing Co. Inc.; 1981, 1981. Text.