APA-viite (7. p.)

Hodge, J. The notebook programmes and projects of Darwińs London years: Jonathan Hodge. The Cambridge Companion to Darwin.(2006).

Chicago-viite (17. p.)

Hodge, Jonathan. "The Notebook Programmes and Projects of Darwińs London Years: Jonathan Hodge." The Cambridge Companion to Darwin.(2006) .

MLA-viite (8. p.)

Hodge, Jonathan. "The Notebook Programmes and Projects of Darwińs London Years: Jonathan Hodge." The Cambridge Companion to Darwin.(2006), .