Παραπομπή σε μορφή APA (7η εκδ.)

Herrera, A. E. (1977). Urinary hydroxyproline and urea-nitrogen excretion as indices of nutritional status [microform]. Photoduplication Service, University of the Philippines Library.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Herrera, Adoracion Espiritu. Urinary Hydroxyproline and Urea-nitrogen Excretion as Indices of Nutritional Status [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1977.

Παραπομπή σε μορφή MLA (9th εκδ.)

Herrera, Adoracion Espiritu. Urinary Hydroxyproline and Urea-nitrogen Excretion as Indices of Nutritional Status [microform]. Photoduplication Service, University of the Philippines Library, 1977.