APA-viite

Richardson, J. H., Child, L. A., & Lever, A. M. (1993). Packaging of human immunodeficiency virus type 1 RNA requires cis-acting sequences outside the 5' leader region.

Chicago-tyylinen lähdeviittaus

Richardson, J H., L A. Child, ja A M. Lever. Packaging of Human Immunodeficiency Virus Type 1 RNA Requires Cis-acting Sequences Outside the 5' Leader Region. 1993.

MLA-viite

Richardson, J H., L A. Child, ja A M. Lever. Packaging of Human Immunodeficiency Virus Type 1 RNA Requires Cis-acting Sequences Outside the 5' Leader Region. 1993.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.