Cita APA (7a ed.)

Liazos, A. (1982). People first: An introduction to social problems. Allyn and Bacon.

Cita Chicago Style (17a ed.)

Liazos, Alexander. People First: An Introduction to Social Problems. Boston [u.a.]: Allyn and Bacon, 1982.

Cita MLA (8a ed.)

Liazos, Alexander. People First: An Introduction to Social Problems. Allyn and Bacon, 1982.