Παραπομπή σε μορφή APA (7η εκδ.)

Gardner Peter S. (1998). New directions: An integrated approach to reading, writing, and critical thinking. Cambridge University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Gardner Peter S. New Directions: An Integrated Approach to Reading, Writing, and Critical Thinking. Cambridge University Press, 1998.

Παραπομπή σε μορφή MLA (8th εκδ.)

Gardner Peter S. New Directions: An Integrated Approach to Reading, Writing, and Critical Thinking. Cambridge University Press, 1998.