Cita APA (7th ed.)

Summers, G. W., & Peters, W. S. (1973). Self-correcting exercises for Basic statistics in business and economics. Wadsworth Publishing Co.

Cita Chicago (17th ed.)

Summers, George W., i William S. Peters. Self-correcting Exercises for Basic Statistics in Business and Economics. Belmont: Wadsworth Publishing Co, 1973.

Cita MLA (9th ed.)

Summers, George W., i William S. Peters. Self-correcting Exercises for Basic Statistics in Business and Economics. Wadsworth Publishing Co, 1973.