Critical pathways of radionuclides to man from agro-ecosystems / J.W. Gibbson...[et al.] - Washington : United States Government Printing Office, 1978 - Various pagings : ill. ; 28 cm. - NUREG/CR-0536 . Subjects--Topical Terms: EcosystemsRadionuclides Dewey Class. No.: 539.752