The problem of the species in malacology after clear evidence of the limits of morphological systematics
Giusti, F.; Manganelli, G. (1992). The problem of the species in malacology after clear evidence of the limits of morphological systematics, in: Gittenberger, E. et al. (Ed.) Proceedings of the Ninth International Malacological Congress, Edinburgh, 31 August-6 September 1986. pp. 153-172
In: Gittenberger, E.; Goud, J. (Ed.) (1992). Proceedings of the Ninth International Malacological Congress, Edinburgh, 31 August-6 September 1986. Unitas Malacologica: Leiden. ISBN 90-73239-08-7. 414 pp., meer
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