Ecology /
Arbatov, A. A.(Aleksandr Arkadʹevich)
Erickson, John,1929-2002,former owner.StEdNL : Erick.Box.1.52(3)
Erickson, Ljubica,former owner.StEdNL : Erick.Box.1.52(3)
Bogoli︠u︡bov, S. A. (Sergeĭ Aleksandrovich)
Sobolev, Leonid Dmitrievich.
Moscow : Novosti Press Agency Publishing House,
1989.
Cover title.
John and Ljubica Erickson collection.
Conservation of natural resources
Ecology