Gaya APA

Sullivan, S., Glanz, J. (2013). Supervision that improves teaching and learning: strategies and techniques (4). United States of America: Corwin a Sage Publishing.

Gaya MLA

Sullivan, Susan., Glanz, Jeffrey. "Supervision that improves teaching and learning: strategies and techniques". 4 United States of America: Corwin a Sage Publishing, 2013. Text.