Jak chleb potrzebna
By: Józef Wójcik.
Edition: Wyd. 1.
Publisher: Krajowa Agencja Wydawnicza
Published: 1977
Place of publication: Warszawa
Language: pol
Number of pages: 98
Subjects: Water -- Pollution -- Physiological effect.; Water -- Pollution -- Environmental aspects.
Notes: Bibliography: p. [100]