地质学家贝丝·吉尔赫斯皮周二将在欧文桑德图书馆发表演讲。 Geologist Beth Gilhespy speaks at Owen Sound Library Tuesday.

地质学家贝丝·吉尔赫斯皮将于周二在欧文桑图书馆发表演讲。 Geologist Beth Gilhespy will speak at the Owen Sound Library on Tuesday. 该演讲面向公众开放。 The presentation is open to the public.