SpringerLink (Online service), Holmes, K. V., & Perlman, S. The nidoviruses: Toward control of SARS and other nidovirus diseases.
Chicago-viite (17. p.)SpringerLink (Online service), Kathryn V. Holmes, ja Stanley Perlman. The Nidoviruses: Toward Control of SARS and Other Nidovirus Diseases.
MLA-viite (8. p.)SpringerLink (Online service), et al. The Nidoviruses: Toward Control of SARS and Other Nidovirus Diseases.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.