WASET
    Joserra Díez and  Ainhoa Meñika and  Iñaki Sanz-Azkue and  Arritokieta Ortuzar,  Urban and Rural Children’s Knowledge on Biodiversity in Bizkaia: Tree Identification Skills and Animal and Plant Listing.   journal   = {International Journal of Humanities and Social Sciences}, [online]. World Academy of Science, Engineering and Technology.
    February 2018, vol. 135(3). 427 - 431
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10008756.