Cita APA

Steele, F. R., Chader, G. J., Johnson, L. V., & Tombran-Tink, J. (1993). Pigment epithelium-derived factor: Neurotrophic activity and identification as a member of the serine protease inhibitor gene family.

Chicago Style Citation

Steele, F R., G J. Chader, L V. Johnson, i J. Tombran-Tink. Pigment Epithelium-derived Factor: Neurotrophic Activity and Identification As a Member of the Serine Protease Inhibitor Gene Family. 1993.

Cita MLA

Steele, F R., G J. Chader, L V. Johnson, i J. Tombran-Tink. Pigment Epithelium-derived Factor: Neurotrophic Activity and Identification As a Member of the Serine Protease Inhibitor Gene Family. 1993.