00570nam a2200169Ia 4500 190328s9999||||xx |||||||||||||| ||und|| 62-16237 NITIL NITIL 21st 338.522 M117P Mac Avoy, Paul W Price formation in natural gas fields a study of competition, monopsony and regulation Paul W Mac Avoy New Haven Yale Unversity Press 1962 xix, 281p. Yale studies in economics; 14) Price formation (Va and W Va); Gas fields; Marketing BKS 17183 17183 0 0 DDC 0 0 NITIL NITIL 2019-04-02 0 338.522 M117P 41876 2019-04-02 00:00:00 2019-04-02 BKS