S. Rothenberg Paula. (2010). What's the Problem?: A Brief Guide to Thinking Critically. New York: Catherine Woods.
Παραπομπή Chicago StyleS. Rothenberg Paula. What's the Problem?: A Brief Guide to Thinking Critically. New York: Catherine Woods, 2010.
Παραπομπή MLAS. Rothenberg Paula. What's the Problem?: A Brief Guide to Thinking Critically. New York: Catherine Woods, 2010.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.