Zeng, M., & Žumer, M. (1994). Comparison and Evaluation of OPAC End-User Interfaces. Cataloging & Classification Quarterly. https://doi.org/10.1300/J104v19n02_05
Zeng, Marcia, and Maja Žumer. 1994. “Comparison and Evaluation of OPAC End-User Interfaces”. Cataloging & Classification Quarterly. https://doi.org/10.1300/J104v19n02_05.
Zeng, M., and M. Žumer. Comparison and Evaluation of OPAC End-User Interfaces. Cataloging & Classification Quarterly, 1 Jan. 1994, doi:10.1300/J104v19n02_05.