Show user's tables & views

Sorry for this trivial question. We have many old users which are to be dropped. It is good practice (I think) to know what tables (and/or views) they created so we can drop them before we revoke connect & resource from such users
But I don't know how to list all the tables and views created by all users of the tablespace.
Can someone tell me the command please

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[----------------ooO-(_)-Ooo---------------] PM Wong (Computer Officer)

[User User User User User User User User Us] CTSC Hong Kong Baptist College

[ser User User User User User User User Use] 224 Waterloo Road, Kln. HONGKONG

[er User User User User User User User User] Voice: (852)3397425  Fax: 3397888


[------------------------------------------] Email: pm_at_ctsc.hkbc.hk