Svetovnii͡a︡t ekologichen problem
By: [avtorski kolektiv Zhivko Zhivkov ... et al.].
Contributors: Zhivkov, Zhivko.
Edition: 1. izd.
Publisher: Partizdat
Published: 1984
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 338
Notes: Bibliography: p. 332-333.