Rogan, I. (1998). Experience in the elaboration of a documented quality assurance system at CROSCO, integrated drilling & well services co. Ltd. Zagreb: Experience in the elaboration of a documented quality assurance system at CROSCO, integrated drilling & well services co. Ltd. Zagreb. Nafta (Zagreb), p. 9.
Chicago stil citiranjaRogan, Ivan. "Experience in the elaboration of a documented quality assurance system at CROSCO, integrated drilling & well services co. Ltd. Zagreb: Experience in the elaboration of a documented quality assurance system at CROSCO, integrated drilling & well services co. Ltd. Zagreb." 1998: 9.
MLA stil citiranjaRogan, Ivan. "Experience in the elaboration of a documented quality assurance system at CROSCO, integrated drilling & well services co. Ltd. Zagreb: Experience in the elaboration of a documented quality assurance system at CROSCO, integrated drilling & well services co. Ltd. Zagreb." 1998: 9.