APA način citiranja (7. izdanje)
Hegeler, S. Peter and caroline: A child asks about childbirth and sex (1a.ed.). Tavistock publications limited.
Čikaški stil citiranja (17. izdanje)
Hegeler, Sten. Peter and Caroline: A Child Asks About Childbirth and Sex. 1a.ed. Londres: Tavistock publications limited.
MLA način citiranja (9. izdanje)
Hegeler, Sten. Peter and Caroline: A Child Asks About Childbirth and Sex. 1a.ed. Tavistock publications limited.
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