Each color disk file should be accompanied with a color proof. Halftone screening, stripping and other hand work will be billed to advertiser at prevailing rates. Advertising space orders must arrive by the 5th of the month preceding date of issue. When normal closing dates fall on holidays, issues close the following workday. No cancellations or changes in order will be accepted after closing dates.
Invoices are payable upon receipt in U.S. funds.
Net 30 days. All advertisements originating outside the U.S. must be prepaid. Advertisers will be short rated if, within a 12-month period from date of first insertion, they do not use the amount of space upon which their billings have been based. Advertisers will be rebated if, within a 12-month period from the date of first insertion, they have used sufficient additional space to warrant a lower rate than that which they have been billed. Bills are issued same day as publication.