APA (7th ed.) Citation

ScienceDirect (Online service), Green, D. M., & Sessions, S. K. (1991). Amphibian cytogenetics and evolution. Academic Press.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service), David Martin Green, and Stanley Keith Sessions. Amphibian Cytogenetics and Evolution. [San Diego]: Academic Press, 1991.

MLA (9th ed.) Citation

ScienceDirect (Online service), et al. Amphibian Cytogenetics and Evolution. Academic Press, 1991.