Ecology of chronic nonspecific respiratory diseases: Proceedings of the international symposium; editors, Brzezinski, Z., Kopczynski, J. and Sawicki,

Ecology of chronic nonspecific respiratory diseases: Proceedings of the international symposium; editors, Brzezinski, Z., Kopczynski, J. and Sawicki, - Warsaw (Poland) State Institute of Hygiene, 1972 - 239p.


Air Pollution-congresses
Bronchitis-congresses
Ecology-congresses
Occupational Diseases-congresses
Respiratory Tract Diseases-congresses
Respiratory Tract Infections-congresses

WF 140: N72E: INT
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