Lichenii, un paradox al naturii
Subtitle: 1 + 1 = 1.
Contributors: Petria, Elena.
Series: Natura și omul
Publisher: Editura științifică
Published: 1971
Place of publication: București
Language: rum
Number of pages: 192
Notes: Bibliography: p. 183-[184]
At head of title: Elena Mantu, Elena Petria.