APA Style

Darwin, Charles, Huxley, Sir Julian. (2003). The Origin of Species: by Means of Natural Selection or the Preservation of Favored Races in the Struggle for Life (Signet Classics Edition). New York, USA: New American Library.

Chicago Style

Darwin, Charles, Huxley, Sir Julian. The Origin of Species: by Means of Natural Selection or the Preservation of Favored Races in the Struggle for Life. Signet Classics Edition New York, USA: New American Library, 2003. Printed Book.

MLA Style

Darwin, Charles, Huxley, Sir Julian. The Origin of Species: by Means of Natural Selection or the Preservation of Favored Races in the Struggle for Life. Signet Classics Edition New York, USA: New American Library, 2003. Printed Book.

Turabian Style

Darwin, Charles, Huxley, Sir Julian. The Origin of Species: by Means of Natural Selection or the Preservation of Favored Races in the Struggle for Life. Signet Classics Edition New York, USA: New American Library, 2003. Printed Book.