Levine, M. (1994). Effective problem solving (2nd edition.). Prentice-Hall of India.
Chicago Edition CitationLevine, Marvin. Effective Problem Solving. 2nd edition. Englewood Cliffs: Prentice-Hall of India, 1994.
ציטוט MLALevine, Marvin. Effective Problem Solving. 2nd edition. Prentice-Hall of India, 1994.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.