Gaya APA

Carin, A, A., Sund, R, B. (1971). Developing Questioning Techniques: A Self-Concept Approach . Ohio: Charles E. Merrill Publishing Company.

Gaya MLA

Carin, Arthur, A.., Sund, Robert, B.. "Developing Questioning Techniques: A Self-Concept Approach". Ohio: Charles E. Merrill Publishing Company, 1971. Text.