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- [47] CONTRACT R-AND-D COMPANIES - A 4TH ESTATE ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1985, 189 (APR-): : 18 - SCHB
- [48] FEDERAL INCOME AND ESTATE TAX LAWS, CORRELATED AND ANNOTATED, 4th edition ILLINOIS LAW REVIEW, 1930, 24 (08): : 953 - 954