APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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