KOOPMANS, B. (1975). Srtuctural geology excersises - BN Koopmans. BN Koopmans.
Čikaški stil citiranja (17. izdanje)KOOPMANS, BN. Srtuctural Geology Excersises - BN Koopmans. BN Koopmans, 1975.
MLA način citiranja (8. izdanje)KOOPMANS, BN. Srtuctural Geology Excersises - BN Koopmans. BN Koopmans, 1975.
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