Cita APA (7a ed.)

Pleijel, F., & Dales, R. (1991). Polychaetes. British phyllodocoideans, typhloscolecoideans and tomopteroideans: Keys and notes for the identification of the species. Universal Book Services.

Cita Chicago Style (17a ed.)

Pleijel, Fredrik, y R.P Dales. Polychaetes. British Phyllodocoideans, Typhloscolecoideans and Tomopteroideans: Keys and Notes for the Identification of the Species. Oegstgeest: Universal Book Services, 1991.

Cita MLA (9a ed.)

Pleijel, Fredrik, y R.P Dales. Polychaetes. British Phyllodocoideans, Typhloscolecoideans and Tomopteroideans: Keys and Notes for the Identification of the Species. Universal Book Services, 1991.