Quantitative aspects of harbour seal (Phoca vitulina) play. In Journal of Zoology (London), 212:267-273. ,
Titre : Quantitative aspects of harbour seal (Phoca vitulina) play. In Journal of Zoology (London), 212:267-273. ,
Date de publication : 1987
Auteur(s) : RENOUF, D. & J. W. LAWSON