SOGE, P. (1991). A Reading Programme Civil Engineering Student Book I Paulinus Soge. UAJY.
Čikaški stil citiranja (17. izdanje)SOGE, Paulinus. A Reading Programme Civil Engineering Student Book I Paulinus Soge. UAJY, 1991.
MLA način citiranja (8. izdanje)SOGE, Paulinus. A Reading Programme Civil Engineering Student Book I Paulinus Soge. UAJY, 1991.
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