Παραπομπή APA

Paul Witty. (1963). How to improve your reading. Chicago: Science Research Associates.

Παραπομπή Chicago Style

Paul Witty. How to Improve Your Reading. Chicago: Science Research Associates, 1963.

Παραπομπή MLA

Paul Witty. How to Improve Your Reading. Chicago: Science Research Associates, 1963.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.