Play Quotes - Page 191
Ralph Ellison, Maryemma Graham, Amritjit Singh (1995). “Conversations with Ralph Ellison”, p.364, Univ. Press of Mississippi
Plato (1883). “Plato's Best Thoughts”
Philippe Ariès (1962). “Centuries of childhood: a social history of family life”, Vintage
"The Fifth Discipline: The Art and Practice of the Learning Organization". Book by Peter Senge, 1990.