APA (7th ed.) Citation

ScienceDirect (Online service), Lefkovits, I., & Pernis, B. (1981). Immunological methods. Academic Press.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service), Ivan Lefkovits, and Benvenuto Pernis. Immunological Methods. [New York]: Academic Press, 1981.

MLA (9th ed.) Citation

ScienceDirect (Online service), et al. Immunological Methods. Academic Press, 1981.