REMOVE

1. graphite pencils
2. art critics
3. ink
4. 1948 December 12-15

WHAT

1. Information Forms (hierar … (1)
2. art criticism (subject) (1)

WHO

1. Clyfford Still; Still, Cl … (1)
2. Still, Clyfford (1)

WHEN

1. 1948 (1)