Cita APA (7a ed.)

FRANCIS, D. (1991). Effective Problem Solving Dave Francis. Routledge.

Cita Chicago Style (17a ed.)

FRANCIS, Dave. Effective Problem Solving Dave Francis. Routledge, 1991.

Cita MLA (8a ed.)

FRANCIS, Dave. Effective Problem Solving Dave Francis. Routledge, 1991.