Cita APA (7th ed.)

Costa, A. L., & Kallick, B. (2004). Assessment strategies for self-directed learning. Corwin Press.

Cita Chicago (17th ed.)

Costa, Arthur L., i Bena Kallick. Assessment Strategies for Self-directed Learning. Thousand Oaks, Calif: Corwin Press, 2004.

Cita MLA (9th ed.)

Costa, Arthur L., i Bena Kallick. Assessment Strategies for Self-directed Learning. Corwin Press, 2004.