Cita APA (7a ed.)

Spurr, W. A., Kellog, L. S., & Smith, J. H. (1954). Business and economic statistics. Irwin.

Cita Chicago Style (17a ed.)

Spurr, William A., Lester S. Kellog, y John H. Smith. Business and Economic Statistics. Homewood: Irwin, 1954.

Cita MLA (8a ed.)

Spurr, William A., et al. Business and Economic Statistics. Irwin, 1954.