MLA

Lauwers, Albert, and Romain Ruyssen. Pharmaceutical Enzymes. Properties and Essay Methods / Eds.: R. Ruyssen & A. Lauwers. Gent, 1978.

APA

Lauwers, A., & Ruyssen, R. (1978). Pharmaceutical enzymes. Properties and essay methods / eds.: R. Ruyssen & A. Lauwers. Gent.

Chicago

Lauwers, Albert, and Romain Ruyssen. Pharmaceutical Enzymes. Properties and Essay Methods / Eds.: R. Ruyssen & A. Lauwers. Gent, 1978.