Turk, J. (1984). Environmental Science Jonathan Turk And Amos Turk. Saunders College Pub.
Čikaški stil citiranja (17. izdanje)Turk, Jonathan. Environmental Science Jonathan Turk And Amos Turk. Saunders College Pub, 1984.
MLA način citiranja (8. izdanje)Turk, Jonathan. Environmental Science Jonathan Turk And Amos Turk. Saunders College Pub, 1984.
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