2024 CFR > Title 26 > Chapter I > Subchapter A > Part 1 > Sales and Exchanges

2023 CFR > Title 26 > CHAPTER I > SUBCHAPTER A > PART 1 > Sales and Exchanges

2022 CFR > Title 26 > Chapter I > Subchapter A > Part 1 > Sales and Exchanges – Sales and Exchanges

2021 CFR > Title 26 > Chapter I > Subchapter A > Part 1 > Sales and Exchanges – Sales and Exchanges