APA (7th ed.) Citation

ScienceDirect (Online service), Quirion, R., Björklund, A., & Hökfelt, T. (2000). Peptide receptors. Elsevier.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service), Remi Quirion, Anders Björklund, and Tomas Hökfelt. Peptide Receptors. Amsterdam ; New York: Elsevier, 2000.

MLA (9th ed.) Citation

ScienceDirect (Online service), et al. Peptide Receptors. Elsevier, 2000.