Cita APA (7a ed.)

Tower, E. (1990). Microeconomics exams, puzzles & problems. Eno River Press.

Cita Chicago Style (17a ed.)

Tower, Edward. Microeconomics Exams, Puzzles & Problems. Durham, NC: Eno River Press, 1990.

Cita MLA (9a ed.)

Tower, Edward. Microeconomics Exams, Puzzles & Problems. Eno River Press, 1990.