APA ציטוט

Pettijohn, D. E., & Pfenninger, O. (1980). Supercoils in prokaryotic DNA restrained in vivo. Proc Natl Acad Sci U S A.

Citação norma Chicago

Pettijohn, D E., and O. Pfenninger. "Supercoils in Prokaryotic DNA Restrained in Vivo." Proc Natl Acad Sci U S A 1980.

ציטוט MLA

Pettijohn, D E., and O. Pfenninger. "Supercoils in Prokaryotic DNA Restrained in Vivo." Proc Natl Acad Sci U S A 1980.