Cita APA

Roach, F. E., & Gordon, J. L. (1973). Light of the night sky. D Reidel pub. co.

Chicago Edition Citation

Roach, F E., i Janet L. Gordon. Light of the Night Sky. Boston: D Reidel pub. co, 1973.

Cita MLA

Roach, F E., i Janet L. Gordon. Light of the Night Sky. D Reidel pub. co, 1973.