Investigations concerning the behaviour of farm silver fox (Vulpes vulpes L.) and an attempt to utilize the results for breeding and keeping improvement / Tadeusz Kaleta. -- Warszawa : SGGW, 1991. -- 64 s. : 19 obr., 25 tab. Res. pol. -- ISBN 83-00-02746-7. líšky strieborné * Vulpes vulpes * monografie