Epstein, R. L. (1981). Initial segments of degrees below 0'. American Mathematical Society.
Chicago Style (17th ed.) CitationEpstein, Richard L. Initial Segments of Degrees Below 0'. Providence, R.I.: American Mathematical Society, 1981.
MLA (9th ed.) CitationEpstein, Richard L. Initial Segments of Degrees Below 0'. American Mathematical Society, 1981.
Warning: These citations may not always be 100% accurate.