TY - BOOK AU - Caelli, Terry TI - Visual perception, theory and practice PB - Pergamon PY - 1981 T2 - Pergamon international library of science, technology, engineering and social studies EP - x, 197 p. UR - https://ci.nii.ac.jp/ncid/BA38048047 SN - 008024419X SN - 0080244203 ER -