Birren, F.

1

Bittermann, E.

1

Carraher, R.G.

1

Damaz, P.

1

Levison, H.W.

1

Manson, G.C.

1

Parola, R.

1

Thurston, J.B.

1

Woody, R.O.

1

Young, Joseph L.

1

mosaics

1

observation

1

optical illusion

1

1969

1

1966

1

1965

2

1963

1

1958

1

1956

1

1952

1