Cita APA (7th ed.)

Spiegelman, M. (1955). Introduction to demography: Society of Actuaries' textbook. Society of Actuaries.

Cita Chicago (17th ed.)

Spiegelman, Mortimer. Introduction to Demography: Society of Actuaries' Textbook. [Chicago]: Society of Actuaries, 1955.

Cita MLA (9th ed.)

Spiegelman, Mortimer. Introduction to Demography: Society of Actuaries' Textbook. Society of Actuaries, 1955.