Bruhns. (1970). A New manual of logarithms to seven palces of decimals. d. van nostrand company, inc.
Cita Chicago (17th ed.)Bruhns. A New Manual of Logarithms to Seven Palces of Decimals. London: d. van nostrand company, inc, 1970.
Cita MLA (9th ed.)Bruhns. A New Manual of Logarithms to Seven Palces of Decimals. d. van nostrand company, inc, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.