Trishna Series. (2019). Gate- Civil Engineering 2019( Graduate Aptitute Test). Pearson.
Čikaški stil citiranja (17. izdanje)Trishna Series. Gate- Civil Engineering 2019( Graduate Aptitute Test). Pearson, 2019.
MLA način citiranja (9. izdanje)Trishna Series. Gate- Civil Engineering 2019( Graduate Aptitute Test). Pearson, 2019.
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