Cita APA (7a ed.)

Farr, R. (1969). Reading: What can be measured? IRA.

Cita Chicago Style (17a ed.)

Farr, Roger. Reading: What Can Be Measured? Newark: IRA, 1969.

Cita MLA (9a ed.)

Farr, Roger. Reading: What Can Be Measured? IRA, 1969.