Cita APA

Crisp, D. T., & Beaumont, R. C. The trout (Salmo trutta) population of the Afon Cwm, A small tributary of the Afon Ddyfi, mid-Wales.

Citación estilo Chicago

Crisp, D. T., y R. C. Beaumont. The Trout (Salmo Trutta) Population of the Afon Cwm, A Small Tributary of the Afon Ddyfi, Mid-Wales.

Cita MLA

Crisp, D. T., y R. C. Beaumont. The Trout (Salmo Trutta) Population of the Afon Cwm, A Small Tributary of the Afon Ddyfi, Mid-Wales.