Cita APA (7th ed.)

Chromey, F. R. (2016). To measure the sky: An introduction to observational astronomy (2a. ed.). Cambridge University Press.

Cita Chicago (17th ed.)

Chromey, Frederick R. To Measure the Sky: An Introduction to Observational Astronomy. 2a. ed. Princeton: Cambridge University Press, 2016.

Cita MLA (9th ed.)

Chromey, Frederick R. To Measure the Sky: An Introduction to Observational Astronomy. 2a. ed. Cambridge University Press, 2016.