Leybourn, W. (1667). The art of numbering by speaking-rods: Vulgarly termed Nepeirs bones : by which the most difficult parts of arithmetick, as multiplication, division, and extracting of roots both square and cube, are performed with incredible celerity and exactness (without any charge to the memory) by addition and subtraction only. Printed for W. Hayes, and are to be sold at his house in Moorfields.
Chicago Style (17th ed.) CitationLeybourn, William. The Art of Numbering by Speaking-rods: Vulgarly Termed Nepeirs Bones : By Which the Most Difficult Parts of Arithmetick, as Multiplication, Division, and Extracting of Roots Both Square and Cube, Are Performed with Incredible Celerity and Exactness (without Any Charge to the Memory) by Addition and Subtraction Only. London: Printed for W. Hayes, and are to be sold at his house in Moorfields, 1667.
MLA (9th ed.) CitationLeybourn, William. The Art of Numbering by Speaking-rods: Vulgarly Termed Nepeirs Bones : By Which the Most Difficult Parts of Arithmetick, as Multiplication, Division, and Extracting of Roots Both Square and Cube, Are Performed with Incredible Celerity and Exactness (without Any Charge to the Memory) by Addition and Subtraction Only. Printed for W. Hayes, and are to be sold at his house in Moorfields, 1667.