Ray, S. Deep focus. HarperCollins.
Chicago Edition CitationRay, Satyajit. Deep Focus. HarperCollins.
ציטוט MLARay, Satyajit. Deep Focus. HarperCollins.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.
Ray, S. Deep focus. HarperCollins.
Chicago Edition CitationRay, Satyajit. Deep Focus. HarperCollins.
ציטוט MLARay, Satyajit. Deep Focus. HarperCollins.