Cita APA (7th ed.)

BLOOM, M. (1985). Life span development: Bases for preventive and interventive helping.-- ed.2. Macmillan.

Cita Chicago (17th ed.)

BLOOM, Martin. Life Span Development: Bases for Preventive and Interventive Helping.-- Ed.2. New York: Macmillan, 1985.

Cita MLA (9th ed.)

BLOOM, Martin. Life Span Development: Bases for Preventive and Interventive Helping.-- Ed.2. Macmillan, 1985.