Cita APA

North, G. (1998). Advanced amateur astronomy (2nd ed.). Cambridge, N.Y.: Cambridge University Press.

Citación estilo Chicago

North, Gerald. Advanced Amateur Astronomy. 2nd ed. Cambridge, N.Y.: Cambridge University Press, 1998.

Cita MLA

North, Gerald. Advanced Amateur Astronomy. 2nd ed. Cambridge, N.Y.: Cambridge University Press, 1998.