APA Citation

Duffett-Smith, P., & Zwart, J. (2011). Practical astronomy with your calculator or spreadsheet (4th ed.). Cambridge, UK ; New York, N.Y.: Cambridge University Press.

Chicago Style Citation

Duffett-Smith, Peter., and Jonathan Zwart. Practical Astronomy With Your Calculator or Spreadsheet. 4th ed. Cambridge, UK ; New York, N.Y.: Cambridge University Press, 2011.

MLA Citation

Duffett-Smith, Peter., and Jonathan Zwart. Practical Astronomy With Your Calculator or Spreadsheet. 4th ed. Cambridge, UK ; New York, N.Y.: Cambridge University Press, 2011.

Warning: These citations may not always be 100% accurate.