Gaya APA

Harvey, J., Jhonson, M. (1973). Introduction To Macro-Ekonomics . London: Macmillan New Studes In Econimics.

Gaya MLA

Harvey, J.., Jhonson, M.K.. "Introduction To Macro-Ekonomics". London: Macmillan New Studes In Econimics, 1973. Text.