Cita APA (7a ed.)
Duvall, E. R. (1971). Family development (4th ed.). Lippincott.
Cita Chicago Style (17a ed.)
Duvall, Evelyn Ruth. Family Development. 4th ed. Philadelphia: Lippincott, 1971.
Cita MLA (9a ed.)
Duvall, Evelyn Ruth. Family Development. 4th ed. Lippincott, 1971.
Precaución: Estas citas no son 100% exactas.