1. O mazadlech, jich upotřebení a zkoušení Creator: Kovář, Jan Publisher: Jan Kovář - vl. n. Format: print and 107 s. : obr. Type: model:monograph, text, and TEXT Subject: udc:631.3, agrovoc:UN04, and agroterm:maziva Language: Czech Description: (Statement of Responsibility) Jan Kovář and (Acquisition) d Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public