Cita APA (7th ed.)

SIEGEL JACOB S. & SWANSON DAVID A. (2016). THE METHODS AND MATERIALS OF DEMOGRAPHY (2nd. ed.). ANGEL LIBRARY.

Cita Chicago (17th ed.)

SIEGEL JACOB S. i SWANSON DAVID A. THE METHODS AND MATERIALS OF DEMOGRAPHY. 2nd. ed. Boston: ANGEL LIBRARY, 2016.

Cita MLA (9th ed.)

SIEGEL JACOB S. i SWANSON DAVID A. THE METHODS AND MATERIALS OF DEMOGRAPHY. 2nd. ed. ANGEL LIBRARY, 2016.