The comparative ecology of the flat periwinkles, Littorina obtusata (L.) and L. mariae Sacchi et Rastelli
Williams, G.A. (1990). The comparative ecology of the flat periwinkles, Littorina obtusata (L.) and L. mariae Sacchi et Rastelli. Field Stud. 7: 469-482
In: Field Studies. Field Studies Council: London. ISSN 0428-304X, more
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