@article{006516371, title = "Studies on the essential oils on the pakistani species of n.o. umbelliferae part i. ligusticum stewartii hiroe e. nasir seed oil", author = "Ahmad, M. and Mahmood, S. and Sabir, A.W. and Bhatty, M.K.", year = "1986", journal = "Pakistan Journal of Scientific and Industrial Research", volume = "29", number = "4", pages = "265-267", issn = "0030-9885", url = "https://eurekamag.com/research/006/516/006516371.php" }