1 PENDER, Harold Handbook for Electrical Engineers : A Reference Book For Practicing Engineers and Students of Engineering / Harold Pender, William A. Del Mar. -Second edition Revised and Enlarged New York ; London : John Willey and Sons Inc., 1922. - 621.3 PENDE han
2 PRIRODA popularni časopis hrvatskog prirodoslovnog društva Priroda : popularni časopis hrvatskog prirodoslovnog društva. - Zagreb : Hrv. Prirodoslovno Društvo, 1911. - Priroda