Cita APA (7th ed.)

Silberman, M. L., & Auerbach, C. (1990). Active training: A handbook of techniques, designs, case examples, and tips. University Associates, Inc.

Cita Chicago (17th ed.)

Silberman, Melvin L., i Carol Auerbach. Active Training: A Handbook of Techniques, Designs, Case Examples, and Tips. San Diego, Calif: University Associates, Inc, 1990.

Cita MLA (9th ed.)

Silberman, Melvin L., i Carol Auerbach. Active Training: A Handbook of Techniques, Designs, Case Examples, and Tips. University Associates, Inc, 1990.