Cita APA (7a ed.)

Falk, I. S. (1923). The principles of vital statistics. W.B. Saunders.

Cita Chicago Style (17a ed.)

Falk, Isidore Sydney. The Principles of Vital Statistics. Philadelphia [etc.]: W.B. Saunders, 1923.

Cita MLA (9a ed.)

Falk, Isidore Sydney. The Principles of Vital Statistics. W.B. Saunders, 1923.