Cita APA (7th ed.)

Healey, J. F. (2005). Statistics: A tool for social research (7th ed.). Wadsworth Pub.

Cita Chicago (17th ed.)

Healey, Joseph F. Statistics: A Tool for Social Research. 7th ed. Belmont, Calif: Wadsworth Pub, 2005.

Cita MLA (9th ed.)

Healey, Joseph F. Statistics: A Tool for Social Research. 7th ed. Wadsworth Pub, 2005.