APA

Stewart P. R., Letham D. S., . (1973). The Ribonucleic acids. New York: Springer-Verlag.

Chicago

Stewart P R, Letham D S, . 1973. The Ribonucleic acids. New York: Springer-Verlag.

Harvard

Stewart P. R., Letham D. S., . (1973). The Ribonucleic acids. New York: Springer-Verlag.

MLA

Stewart P R, Letham D S, . The Ribonucleic acids. New York: Springer-Verlag. 1973.