SpringerLink (Online service), Aguh, C., & Okoye, G. A. (2017). Fundamentals of Ethnic Hair: The Dermatologist's Perspective. Springer International Publishing : Imprint: Springer.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Crystal Aguh, και Ginette A. Okoye. Fundamentals of Ethnic Hair: The Dermatologist's Perspective. Cham: Springer International Publishing : Imprint: Springer, 2017.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Fundamentals of Ethnic Hair: The Dermatologist's Perspective. Springer International Publishing : Imprint: Springer, 2017.
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