WILLIAMSON, Phillip Age determination of juvenile and adult Cepaea / Phillip Williamson. -- [S.l.] : [s.n.], 1979 - pp. 52-60 Separata de : J. Moll. Stud. 45 Subjects--Topical Terms: CepaeaGasterópodosMoluscosPaleozoología Universal Decimal Class. No.: 564.38