Earth (Waukesha, Wis.)
Earth [elektronický zdroj]. -- Vol. 1, no. 1 (Jan. 1992)-v. 7, no. 4 (Aug. 1998). -- Waukesha, WI : Kalmbach Pub. Co., c1991-c1998. -- 7 v. : ill. (some col.), maps ; 28 cm. -- Title from cover.
Earth Sciences - General and Others. Environmental Sciences - General and Others. Earth sciences - Popular works - Periodicals. Aardwetenschappen. Sciences de la terre - Ouvrages de vulgarisation - Périodiques