Nasuwa, E. J. G. A Study of spatic-temporal variation in morph-frequencies of sitala jenynsi (PFR) (Pulmonate, urocyclidae) on Dar es Salaam University campus 1985-1986 - Dar es Salaam: University of Dar es Salaam, 1986. - vi,33p.: ill.; 39cm. Subjects--Topical Terms: PulmonataTanzaniaDar es Salaam University LC Class. No.: THS ZOO QE809.P9N3