Cita APA

Ellis, J. R., & Shackley, S. E. Observations on egg-laying in the thornback ray.

Citación estilo Chicago

Ellis, J. R., y S. E. Shackley. Observations On Egg-laying in the Thornback Ray.

Cita MLA

Ellis, J. R., y S. E. Shackley. Observations On Egg-laying in the Thornback Ray.