APA-referens

Diulio, E. A. (1990). Schaum's outline of theory and problems of macro economic theory (2nd ed.). McGraw-Hill.

Chicago-stil citat

Diulio, Eugene A. Schaum's Outline of Theory and Problems of Macro Economic Theory. 2nd ed. USA: McGraw-Hill, 1990.

MLA-referens

Diulio, Eugene A. Schaum's Outline of Theory and Problems of Macro Economic Theory. 2nd ed. McGraw-Hill, 1990.