Calvin Harlan, . (1986). Vision & Ventiliation: An Introduction to Art Fundamentals. New York: Prentice hall inc.
Calvin Harlan, . 1986. Vision & Ventiliation: An Introduction to Art Fundamentals. New York: Prentice hall inc.
Calvin Harlan, . Vision & Ventiliation: An Introduction to Art Fundamentals. New York: Prentice hall inc. 1986.
