KONDO, H. (1970). The Book of Popular Science, Volume 4. Grolier International.
Lua i Stíl Chicago (17ú heag.)KONDO, Herbert. The Book of Popular Science, Volume 4. Grolier International, 1970.
Lua MLA (8ú heag.)KONDO, Herbert. The Book of Popular Science, Volume 4. Grolier International, 1970.
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