APA

Portugal F. H., Cohen J. S., . (1977). A century of DNA. Cambridge, Massachussets: MIT Press.

Chicago

Portugal Franklin H, Cohen Jack S, . 1977. A century of DNA. Cambridge, Massachussets: MIT Press.

Harvard

Portugal F. H., Cohen J. S., . (1977). A century of DNA. Cambridge, Massachussets: MIT Press.

MLA

Portugal Franklin H, Cohen Jack S, . A century of DNA. Cambridge, Massachussets: MIT Press. 1977.