Gilbert, I. (2014). Independent thinking. Independent Thinking Press.
Chicago Style (17th ed.) CitationGilbert, Ian. Independent Thinking. Carmarthen, Wales: Independent Thinking Press, 2014.
ציטוט MLAGilbert, Ian. Independent Thinking. Independent Thinking Press, 2014.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.