APA (7th ed.) Citation

ScienceDirect (Online service), Florkin, M., & Stotz, E. H. (1971). Comprehensive biochemistry. Elsevier.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service), Marcel Florkin, and Elmer Henry Stotz. Comprehensive Biochemistry. Amsterdam ; Barking: Elsevier, 1971.

MLA (9th ed.) Citation

ScienceDirect (Online service), et al. Comprehensive Biochemistry. Elsevier, 1971.