Template:Gibson, 2009
- Gibson, R. 2009. 19. Phylum Nemertea: ribbon worms. Pp. 362–368 in: Gordon, D.P. (ed.). 2009. New Zealand inventory of biodiversity. Volume 1. Kingdom Animalia. Radiata, Lophotrochozoa, Deuterostomia. Canterbury University Press: Christchurch, New Zealand. ISBN 978-1-87725772-8. Reference page.