Cita APA

Gregory, A., Hartley, J., & Lewis, D. (1969). Basic statistics. Methuen.

Citación estilo Chicago

Gregory, A.H, J.R Hartley, and D.G Lewis. Basic Statistics. London: Methuen, 1969.

Cita MLA

Gregory, A.H, et al. Basic Statistics. Methuen, 1969.

Warning: These citations may not always be 100% accurate.