Cita APA (7a ed.)
Birkey, V. (1978). You: A people helper. Enriched Living.
Cita Chicago Style (17a ed.)
Birkey, Verna. You: A People Helper. Kent, Washington: Enriched Living, 1978.
Cita MLA (9a ed.)
Birkey, Verna. You: A People Helper. Enriched Living, 1978.
Precaución: Estas citas no son 100% exactas.