Cita APA (7th ed.)

JONES, E. (1992). Paradox 4 made easy. Osborne McGraw-Hill.

Cita Chicago (17th ed.)

JONES, Edward. Paradox 4 Made Easy. Berkeley: Osborne McGraw-Hill, 1992.

Cita MLA (9th ed.)

JONES, Edward. Paradox 4 Made Easy. Osborne McGraw-Hill, 1992.