Stahlman, W. d., & Gingerich, O. (1963). Solar planetary longitudes for years -2500 to +2000 by 10-day intervals. The University of Wisconsin.
Cita Chicago (17th ed.)Stahlman, William d., i Owen Gingerich. Solar Planetary Longitudes for Years -2500 to +2000 by 10-day Intervals. Madison: The University of Wisconsin, 1963.
Cita MLA (9th ed.)Stahlman, William d., i Owen Gingerich. Solar Planetary Longitudes for Years -2500 to +2000 by 10-day Intervals. The University of Wisconsin, 1963.
Atenció: Aquestes cites poden no estar 100% correctes.