Cita APA (7a ed.)

Fabra, N. F. (1979). Elementary statistics for secondary schools. Fabra, N.F. Educational Books.

Cita Chicago Style (17a ed.)

Fabra, Norberto F. Elementary Statistics for Secondary Schools. Las Pinas: Fabra, N.F. Educational Books, 1979.

Cita MLA (9a ed.)

Fabra, Norberto F. Elementary Statistics for Secondary Schools. Fabra, N.F. Educational Books, 1979.