@BOOK{NAP18678, author = "National Research Council", editor = "Derrick Henry Lehmer", title = "Guide to Tables in the Theory of Numbers", doi = "10.17226/18678", url = "https://nap.nationalacademies.org/catalog/18678/guide-to-tables-in-the-theory-of-numbers", year = 1941, publisher = "The National Academies Press", address = "Washington, DC" }