1. Pyrethrum. Relative insecticidal value of commercial grades of pyrethrum [with list of literature cited]; by C. C. McDonnell, W. S. Abbott, W. M. Davidson, G. L. Keenan, and O. A. Nelson. Bookmark Corporate/Agency Authors: Food and Drug Administration and Agriculture Department Publisher: Food and Drug Administration Date: July, 1930 SuDoc number: A 1.36:198