APA-Zitierstil (7. Ausg.)
Leach, P. (1983). Babyhood: Stage by stage, from birth to age two: how your baby develops physically, emotionally, mentally. Alfred A. Knopf.
Chicago-Zitierstil (17. Ausg.)
Leach, Penelope. Babyhood: Stage by Stage, from Birth to Age Two: How Your Baby Develops Physically, Emotionally, Mentally. New York: Alfred A. Knopf, 1983.
MLA-Zitierstil (9. Ausg.)
Leach, Penelope. Babyhood: Stage by Stage, from Birth to Age Two: How Your Baby Develops Physically, Emotionally, Mentally. Alfred A. Knopf, 1983.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.