Cita APA (7th ed.)

Einstein, G. O., & Nocks, E. C. (1987). Learning to use SPSSx. Prentice-Hall.

Cita Chicago (17th ed.)

Einstein, Gilles O., i Elaine C. Nocks. Learning to Use SPSSx. Englewood Cliffs, N.J: Prentice-Hall, 1987.

Cita MLA (9th ed.)

Einstein, Gilles O., i Elaine C. Nocks. Learning to Use SPSSx. Prentice-Hall, 1987.