A. Every manufacturer and every wholesaler of alcoholic beverages shall, at the time of shipping or delivering, make a true duplicate invoice of each shipment showing full and complete details of each sale or delivery of the beverages. This invoice shall be retained for a period of two years for the inspection and use of the commissioner. They shall also keep a record of the manufacture and purchase of such beverages by them and shall hold all books, records, and memoranda pertaining to the manufacture and purchase of these beverages subject to the inspection of the commissioner.
B. Retail dealers shall keep a record of all alcoholic beverages purchased by them and shall hold all books, records, and memoranda pertaining to the purchase and sale of such alcoholic beverages for inspection by the commissioner or his agents.
C. In lieu of the invoices required herein for manufacturers and wholesalers, a computer-generated record may be used for the purposes of substantiating the details of each sale or delivery of alcoholic beverages. This record shall be retained for a period of two years for the inspection and use of the commissioner.