Gaya APA
Zelanski, P., Fisher, M, P.
(1991).
The Art of seeing
(
2nd ed)
.
Englewood Cliffs, NJ:
Prentice Hall.
Gaya MLA
Zelanski, Paul., Fisher, Mary, Pat.
"The Art of seeing".
2nd ed
Englewood Cliffs, NJ:
Prentice Hall,
1991.
Text.