Cita APA (7th ed.)

Heller, F. A. e. (1959). New developments in training: Five studies in the efficient communication of skills. Polytechnic Management Association.

Cita Chicago (17th ed.)

Heller, Frank A. ed. New Developments in Training: Five Studies in the Efficient Communication of Skills. [London]: Polytechnic Management Association, 1959.

Cita MLA (9th ed.)

Heller, Frank A. ed. New Developments in Training: Five Studies in the Efficient Communication of Skills. Polytechnic Management Association, 1959.