1967 Box 5 Rare Book & Manuscript Library Zoltan Pfeiffer Papers, 1945-1980Series II: Arranged Correspondence
1968 Box 6 Rare Book & Manuscript Library Zoltan Pfeiffer Papers, 1945-1980Series II: Arranged Correspondence
1969 Box 6 Rare Book & Manuscript Library Zoltan Pfeiffer Papers, 1945-1980Series II: Arranged Correspondence
1970 Box 6 Rare Book & Manuscript Library Zoltan Pfeiffer Papers, 1945-1980Series II: Arranged Correspondence
1971 Box 6 Rare Book & Manuscript Library Zoltan Pfeiffer Papers, 1945-1980Series II: Arranged Correspondence
1972 Box 7 Rare Book & Manuscript Library Zoltan Pfeiffer Papers, 1945-1980Series II: Arranged Correspondence
1973 Box 7 Rare Book & Manuscript Library Zoltan Pfeiffer Papers, 1945-1980Series II: Arranged Correspondence
1974 Box 7 Rare Book & Manuscript Library Zoltan Pfeiffer Papers, 1945-1980Series II: Arranged Correspondence
1975 Box 7 Rare Book & Manuscript Library Zoltan Pfeiffer Papers, 1945-1980Series II: Arranged Correspondence
1976 Box 8 Rare Book & Manuscript Library Zoltan Pfeiffer Papers, 1945-1980Series II: Arranged Correspondence