APA

Baldwin E., . (1949). An introduction to comparative biochemistry. Cambridge, Gran Bretaña: Cambridge University Press.

Chicago

Baldwin Ernest, . 1949. An introduction to comparative biochemistry. Cambridge, Gran Bretaña: Cambridge University Press.

Harvard

Baldwin E., . (1949). An introduction to comparative biochemistry. Cambridge, Gran Bretaña: Cambridge University Press.

MLA

Baldwin Ernest, . An introduction to comparative biochemistry. Cambridge, Gran Bretaña: Cambridge University Press. 1949.