A dictionary of correct English : a manual of information and advice concerning grammar, idiom, use of words, points of styles, punctuation, pronunciation, and other practical matters
"Planned and conducted by a subcommittee of the Agricultural Committee of the Greater Des Moines Chamber of Commerce."
"Published under the auspices of the Agricultural Committee of the Greater Des Moines Chamber of Commerce with the cooperation of the Iowa State University Center for Agricultural and Economic Development."