RT Book T1 Practical approaches to legal research T2 Legal reference services quarterly JF Legal reference services quarterly A1 Olson, Kent C. A1 Berring, Robert C. 1949- A2 Berring, Robert C. 1949- LA English PP New York u.a. PB Haworth YR 1988 UL https://krimdok.uni-tuebingen.de/Record/1086893557 CN 347.30072 SN 0866562532 SN 0866568530