Feldman, E. B. (1981). Varieties of visual experience (2nd ed.). Prentice Hall.
Cita Chicago (17th ed.)Feldman, Edmund Burke. Varieties of Visual Experience. 2nd ed. Englewood Cliffs, N.J: Prentice Hall, 1981.
Cita MLA (9th ed.)Feldman, Edmund Burke. Varieties of Visual Experience. 2nd ed. Prentice Hall, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.