APA (7th ed.) Citation

Sales & Marketing Management. Sales Builders Division. (1981). 1981 county outline retail sales map: [of the United States]. Sales Builders Division of Sales & Marketing Management Magazine.

Chicago Style (17th ed.) Citation

Sales & Marketing Management. Sales Builders Division. 1981 County Outline Retail Sales Map: [of the United States]. New York: Sales Builders Division of Sales & Marketing Management Magazine, 1981.

MLA (9th ed.) Citation

Sales & Marketing Management. Sales Builders Division. 1981 County Outline Retail Sales Map: [of the United States]. Sales Builders Division of Sales & Marketing Management Magazine, 1981.